This Pennefather XK300 Bluetooth keyboard cover, gave me the deepest impression: responsive, easy to carry! ▲ Why buy a tablet? ——The original intention of buying an ipad for myself was to use it for study and office work. However, since I bought the pad, it has basically become a tool for watching movies. I believe that there are not a few people who have this experience! To do a good job, you must first sharpen your tools. Tablets cannot be our productivity tools. In my opinion, apart from our own self-control problems, part of the reason is caused by the objective environment, that is, we have not created a An environment for working and learning with a tablet. Now it is here, we can turn the tablet into a small laptop by using the keyboard cover specially adapted to the tablet, which is very suitable for typing and writing documents. This is the first step to turn the ipad into a productivity tool! Next, let’s see if this Rapoo XK300 can handle this duty, shall we? ▲ The Rapoo XK300 Bluetooth keyboard cover is packaged in a blue hard carton box, with thick material and a rather bright appearance. Generally speaking, it is a simple and satisfactory package! ▲ A complete set of accessories for Rapoo XK300, including: Bluetooth keyboard cover (ipad version), manual, charging cable! ▲ The outer skin of the Rapoo XK300 Bluetooth keyboard cover is made of TPU leather fabric, which is breathable and non-slip, which can effectively avoid the machine from falling due to hand slipping. Moreover, the thickness after folding has not increased much, which is not much different from ordinary ipad protective cases! ▲ After the overall unfolding, it can reach 400mm in length. The lower part is the Bluetooth keyboard, and the upper part is the ipad protective cover. Because it is a Bluetooth connection, there is no wiring! ▲ The bracket only needs to be simply folded, and the angle of the bracket is more suitable for operating the keyboard! ▲ In addition to the camera hole, volume button and power button on the back, there is also a hidden position for the apple pencil, so that the stylus can also be easily stored! The soft silicone protective cover can effectively prevent scratches caused by disassembly and installation! ▲ The keyboard is Rapoo's strong point, and this keyboard adopts the classic shear foot structure, combined with silica gel particles, which can bring a comfortable typing experience! The part in contact with the wrist is made of a skin-friendly material with a frosted texture, which is not only non-slip and dirt-resistant, but also sweat-absorbent and breathable! ▲ The overall keyboard is very light and thin, and only the power interface of the whole keyboard protrudes here alone, which may be easier to crack in the later stage! ▲ The biggest feature of the Pennefather XK300 is that it is very light and thin. Of course, the lightness and lightness are only convenient for carrying. After carrying it out, how effective is it when using it? Next, let's analyze it in detail: ▲ The material and workmanship of the Rapoo XK300 Bluetooth keyboard are very delicate, with almost no flaws! ▲ Before use, you only need to fold up according to the folding position, and then rely on the magnet to hold it, and it will naturally form a stable triangle! ▲ Then push up the ipad, thus completing the assembly of the keyboard stand, which is very convenient and simple, and the tripod stand is still very stable! ▲ The silicone case of Rapoo XK300 is soft and supportive, even if it is bent like this, it can return to its original shape! ▲ The hidden pen slot is also convenient for storing apple pencils! ▲ It is very easy to get started with the Rapoo XK300, just press and hold to turn it on, and then use the ipad Bluetooth to search and connect! ▲ Rapoo XK300 adopts Bluetooth 5.0 high-speed connection, which is almost the same as the touchpad response speed of a computer. Moreover, there are more than a dozen functions that can be realized by the touchpad, such as the swipe screen and dragging icons shown in the picture, which are the most commonly used functions! ▲ Cooperating with various gestures of the touchpad, it can also realize right-click icons and so on! ▲ The touchpad of the Rapoo XK300 uses a multi-touch touchpad, which supports up to four-finger operations, such as four-finger touch screen capture. I believe that users who have used Apple notebooks should be familiar with the multi-touch touchpad. It is really easy to use and can easily realize many complex functions! ▲ Swipe down to bring up the program dock, which is also one of the most commonly used functions! ▲ In addition to the touchpad, the most noteworthy thing about this Rapoo XK300 is the keyboard. After all, Rapoo’s specialty is keyboard and mouse. This keyboard adds 16 kinds of multimedia keys, and has a matte touch, and the keycaps rebound very quickly. For such a thin keyboard, the feel is quite good, and it is perfect for typing needs! Next is the time to summarize the good things, don’t brag or criticize, seek truth from facts! 1. Thin and convenient. Rapoo XK300 is a device that combines an ipad protective case and a Bluetooth keyboard, but its overall weight is very light, and its size is also very thin, so it is very easy to carry out; 2. Simple operation. The Rapoo XK300 is equipped with a multi-touch touchpad and a keyboard with a shear foot structure. With the multi-touch touchpad, it can quickly complete complex operations such as screenshots and quick program switching, which is quite practical! 1. The power and volume keys feel bad. After the ipad is installed in the protective case, it is a kind of torture to press the power button and volume button. I can't feel whether I have pressed it or not. This is an objective evaluation of the button feel and needs to be improved; 2. The bracket angle cannot be adjusted. The angle of the Rapoo XK300 folding stand is fixed, which is still inconvenient for some scenes other than typing, and needs to be improved; In general, the Rapoo XK300 combines a protective case and a Bluetooth keyboard, and it can be thin and light without losing the operating feel, which is very helpful to improve the productivity of the tablet! I hope that you who bought this keyboard can help you watch less movies and learn more knowledge!

【Preface】 Living in the new era, digital products have been integrated into our daily work and life. Whether it is a mobile phone, tablet, or portable, there is a relatively big pain point, which is inconvenient to input. The Bluetooth keyboard is undoubtedly an artifact to relieve this pain point - Pennefather Bluetooth keyboard XK100. Put away the nonsense and get into the question immediately. [unpacking] The blue packaging with black keyboard (in fact, the white one inside) makes me feel stylish with a sense of freedom, grandeur and compactness. Opening the package, the pure white keyboard comes into view, like an elf in plain clothes coming through, giving people a sense of mystery, but making people want to get closer. 【detail】 The white keyboard with black and blue font logo is indeed fresh and capable; 78 key settings can meet diverse needs, and it is definitely an artifact for going out to work; it comes with an integrated card slot, and the thickness is about It is 12.5mm, supports up to 9.7-inch iPad horizontally, and has an elevation angle of about 110°, making viewing and reading more comfortable. In the F area of ​​the keyboard, there are also commonly used multimedia function combination buttons. The fence net, multimedia, and document operations can realize seamless connection, home page, search, select all, copy, paste, cut, previous song, play, next song, Mute, volume -, volume + and lock screen functions can all be realized. The classic scissor foot structure and chocolate independent keycap design can make the finger force evenly when typing on the keyboard without affecting its rebound speed. Selected silica gel particles, the upgraded tactility makes it feel like playing a piano when typing on the keyboard, silky, smooth and not muddy. The height of 20mm has a supporting effect on the hand, making the hand more crisp and powerful when tapping, and will not let the hand hang in the air for too long and become too tired. Equipped with four status indicators: upper and lower case, Bluetooth pairing, charging, power on and low battery, etc. Uppercase and lowercase status indication: The blue light is on when the keyboard is in uppercase input status. Bluetooth pairing indication: the blue light flashes during pairing, and the blue light turns off when the pairing is successful. Charging indication: The orange light is on when charging, and the orange light is off when fully charged. Power-on/low power indicator: The green light turns on for 2 seconds after power-on, and then turns off, and the green light flashes when the power is low. Turn the key to the side of the card slot to turn on the phone; the charging port uses Micro-USB; the built-in 280mAh lithium battery can be fully charged in only 2 hours, and can support continuous use for about 93 hours after being fully charged. Information such as model, rated power, manufacturer and place of production are printed in the middle of the back. The manual mainly describes the package contents, system requirements, product overview, key combination introduction, connection steps, switching devices, safety reminders, copyright statement, failure analysis and warranty terms, etc. The charging cable is also mainly white, the charging port is Micro-USB, and the length is about 30cm. Here is a family portrait, all of which are pure white, and it feels like a fairy. 【use】 Turn the switch key to the side of the card slot, the switch indicator light will be on for 2 seconds and then go out, that is, the boot is successful. Press the Fn and C keys at the same time to connect to the Bluetooth. At this time, the Bluetooth pairing is performed, and the blue light of the Bluetooth pairing indicator will flash, and the blue light will go out after the pairing is successful. Turn on the bluetooth on the mobile phone, search for the device "RAPOO BT3.0", and click to pair and connect. After connecting the keyboard, you can easily code on the mobile phone, and you can do it quickly and quickly. The steps to connect to the computer are the same. Turn on the computer’s Bluetooth, search for the device “RAPOO BT3.0”, and click pairing. There is no need to enter the pairing code. The keyboard will directly pair and connect, and the connection will be successful after a while. Compared with the soft and weak feeling of the hand-held keyboard, the fast rebound, high speed and percussion feeling of the Rapoo Bluetooth keyboard make me feel like I am really enjoying the notes as if I am playing the piano. 【feeling】 The Rapoo Bluetooth keyboard gives me the feeling that it is an unknown but indispensable good secretary. It will help you at critical moments, but usually hides yourself and never takes credit. The ergonomic all-in-one card slot, compatible adaptation of multiple devices, seamless connection of multiple devices, long-lasting built-in battery, small and exquisite design and rich multimedia combination functions are really impressive. If you use the Type-C charging port and the cool backlight function, then I believe it is definitely a peerless artifact with good looks and resistance!

A classmate's bluetooth keyboard suddenly exploded while charging. I saw my fat brother repairing the keyboard a few days ago (the time when the car overturned), so I asked my fat brother to help him repair it. . There is one thing to say, before repairing, it is generally necessary to listen to the operation before the damage. This allows the location of damage to be identified. The fault description is that when it is charging, it explodes all of a sudden. Charging and charging, there is a high probability of damage to the power management IC, a small probability of damage to the lithium battery, and a small probability of damage to other components. You can know it when you disassemble it. Without further ado, the picture above. You can see that the PCB below has burnt marks. . . The chip in this place has been burned through. There is a high probability that the charging ic will explode, probably because a fast charger is used. . . It's outrageous. . .
There are two solder joints on the pcb, one vbat and one gnd, VBAT should be the abbreviation of VBATTERY, the battery terminal, and GND is the ground. Use a DC power supply to add electricity to see if there is any damage elsewhere. To be on the safe side, start with 2V and add to 3.5V. The power supply used for powering up should have been seen by engineering friends doing experiments. . Schematic diagram of power-on. After the power is added to 3.1V, the light is on, and the visual inspection is that the power management IC is damaged. But everything else is intact, and the Bluetooth keyboard can be used normally, but the charging IC is broken, and there is no substitute in hand, what should I do? ? ? After communication, the students asked that it only needs to meet the daily use functions. Just let this bluetooth keyboard can be charged and charged. Don't be afraid, don't be afraid, the engineering fat brother is fearless. After analysis, the lithium battery is 3.7V, and there is a protection board inside. It can be directly connected to the power supply for charging, the voltage is set to 3.6V, and the current is charged to 50ma, which is considered to be fully charged. Then just make a mother-child terminal between the battery and the board, and the terminal is drawn out. When charging is required, disconnect the terminal and power on to charge the lithium battery. let's move! ! ! The terminal on the lithium battery, the male terminal. Female terminals on the board. Open the shell with a soldering iron. It's not pretty, but it works. Combine! ! Secure the wires with electrical tape. Assemble, the sides look like this. It's ugly, but it doesn't affect functionality. In the front view, the switch button was burned and deformed, so it was thrown away. long tail! ! There is one thing to say, the fat brother's technology is not bad, the car rollover is only a small probability event, thank you for watching and reading! ! !

Expanding My Tech Wishlist: A Review of My Recent Double Eleven Laptop Purchase"Ever since I made my laptop purchase on Double Eleven, my shopping list has grown rapidly, encompassing various accessories such as solid-state drives, memory sticks, mice, and most recently, keyboards. While the importance of a keyboard may vary for many, I realized I made a mistake when I purchased a gaming laptop instead of my usual ThinkPad. The keyboard on this gaming laptop surpasses the ThinkPad's 1.8mm keys in terms of layout and key feel, but the overall distance between keys leaves much to be desired. Additionally, the letter fonts on the gaming keyboard appear strange, with 'D' resembling 'O,' '5' resembling 'S,' and 'K' resembling 'H.' The punctuation marks are so minuscule that they become difficult to decipher.The keyboard layout itself feels narrow and somewhat unaccommodating. Further adding to my frustration is that the USB port on my current laptop seems excessively tight. Whether I try plugging in a USB flash drive, a mouse receiver, or a portable hard disk, the insertion requires considerable effort, and pulling them out becomes an even more laborious task. Durability is questionable as it almost feels like I could drag the entire computer along while attempting to remove a USB device. Thankfully, the laptop does offer two Thunderbolt ports, which somewhat compensates for the tight USB port situation.Given the inconvenient usage of the USB port, I've steered away from it and opted for Bluetooth connectivity instead. I've experimented with both the Logitech and HP Bluetooth mouse options and found Logitech's Bluetooth connection technology to be excellent, boasting minimal delays and fast wake-up times. Naturally, I gravitated towards Logitech when searching for a complementary keyboard that met my current needs of seamless computer gaming and phone usage. This led me to discover the K780 keyboard, which struck the perfect balance.The K780 keyboard sports a sleek black and white color scheme, with the packaging predominantly in black. The front showcases an enticing scene of a mobile phone, instantly capturing my attention. The back provides informative specifications in multiple languages, offering insight into the keyboard's capabilities. Boasting a battery life of two years, it almost seems too good to be true in terms of power efficiency.Unpacking the keyboard, I notice the instructions for use neatly printed on the packaging paper. It comes encased in a protective plastic bag, adding an extra layer of care. Opening the back cover requires a firm push, ensuring a secure fit. Surprisingly, the battery is already included, with the receiver conveniently placed in a groove. However, accidental battery replacements may cause the receiver to dislodge.Featuring a round keyboard, the K780 emits low, pleasant keystrokes, providing a more comfortable typing experience compared to a laptop keyboard. A noticeable soft rubber card slot on the side prevents any damage to my mobile phone during usage.On the right side of the keyboard, the essential keys are strategically placed for convenient access. This keyboard beautifully integrates with the computer, seamlessly merging the devices for efficient multitasking.While there are a few notable downsides, they do not overshadow the advantages of the K780. Firstly, the keyboard carries a bit of weight, causing friction when moved across a table. It necessitates lifting rather than pushing, making mobility slightly challenging. Secondly, the absence of a rear stand restricts the keyboard to a flat position. Nevertheless, the K780 includes a slight slope, which mitigates discomfort to some extent. However, it still falls short of providing a complete ergonomic solution.On the bright side, the K780's main feature lies in its ability to swiftly switch between three devices: computers, mobile phones, and tablets. With just the press of three white keys on the keyboard, I can effortlessly transition between different gadgets. The keyboard designates '1' for the computer, '2' for the mobile phone, and '3' for the tablet. Pairing with a new device is as easy as pressing and holding one of these numbers until it rapidly blinks, entering pairing mode. This functionality brings about unparalleled convenience.After a few days of extensive usage, I can confidently say that the K780 keyboard delivers a stable performance, allowing for quick device switching and instant wake-up times. The phone and tablet slot firmly hold my Lenovo tablet, guaranteeing a secure fit. However, I must emphasize that this experience is specific to my Lenovo tablet, and I can't vouch for its compatibility with other tablets.In conclusion, I extend my well wishes to all tech enthusiasts searching for their perfect "toys." With my recent addition of the K780 keyboard, I've expanded my tech wishlist, and despite a few drawbacks, I am pleased with this purchase.

Since the beginning of "tossing" the keyboard, there are quite a lot of brands that have been in contact with before and after. With the continuous improvement of technology, switches, keycaps, color matching, joint names... Each manufacturer is creating its own characteristics.
Come to try the Luofei Xiaoqiao 100 Bluetooth mechanical keyboard today, follow the keyboard, and put in a set of keycaps. It’s been a long time since I’ve used a monochrome keyboard. This time I changed my taste and started with a cement gray color scheme. The X cold style is also popular at the moment. Open the package, in addition to the keyboard, there is a type-c cable, three AAA batteries and a metal bracket. As a wireless keyboard, Luofei Xiaoqiao 100 is powered by three 7-cell batteries. Open the battery cover and you can see that the 2.4G receiver is cleverly stored inside. Install the battery, adjust the swing knob to the 2.4G/BT position and you can use it. It can realize arbitrary switching between multi-modes, and can also be used for wired connection through type-c. Put your favorite small ornaments on the metal plate that comes with the keyboard to bring a good mood for the day. I have never seen such a design on other brands of keyboards, and it is very decompressing. Although the keyboard of Luofei Xiaoqiao 100 is monochrome, the versatile gray is also very suitable for table use. Xiaoqiao 100 is slightly tilted at 9° as a whole, and its chassis is completely curved, drawing a perfect arc from bottom to top. The keycaps are raised slightly, which conforms to the ergonomic design. When typing, the palm of the hand is just right on the keyboard, and the hand feels very comfortable. The arrangement between each key of Luofei Xiaoqiao 100 is very compact, so its length is only 36.7mm, which feels very close to the length of the 87 keyboard. The appearance of Xiaoqiao 100 is very capable, and the unique 50-degree gray pattern element on the space bar has a sense of design. Xiaoqiao 100 uses a closed BPT keycap, which is very distinctive and highly recognizable.
The shaft body adopts the Jiadalong yellow shaft Pro, which has a fast rebound speed, and it is very quiet to tap, and the hands-on speed is very fast.
In daily life, replacing keycaps is also a good way to relax and decompress and adjust your mood. Another set of keycaps I chose is the "Shandong Ship" color scheme. At present, YQ is frequent in this situation, and the daily life is mainly at home. I can take advantage of this time to adjust my mood and adjust the pace of life.
Compared with the cement gray keycaps, the color scheme of the Shandong ship is composed of blue gray, black, and orange, which is also very distinctive. A closer look at each button shows a strong navy element design. Both keycaps have their own characteristics, and I like them very much. After my use, the overall performance of the Luofei Xiaoqiao 100 Bluetooth cement gray mechanical keyboard is very good, and the dual-mode design can freely switch between different devices. The 9-degree upturned design, coupled with the delicate touch buttons, combined with Jiadalong Yellow Switch Pro, provides an excellent feel. Using different keycaps can bring different moods.
At the end of the day, you all move your fingers one after another, follow, like, bookmark, and reward are the greatest support for me, thank you everyone!
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