COOLAY H18+ Ultra-Compact Wireless Touchpad Keyboard, 2.4GHz Wireless Connection, Integrated Keyboard and Mouse, Backlit Trackpad, Full-Screen Touch,

[USB Powered & Energy-Saving] The built-in 300mAh lithium-ion battery allows for repeated charging, eliminating the need for cumbersome cables. After a full charge, the keyboard can be used continuously for over a week. The keyboard automatically goes into sleep mode after three minutes of inactivity, saving energy. [Please note: The one-year warranty period only applies to products purchased from YOCUNKER distributors. There is no quality guarantee if purchased from other retailers.] [All-in-one keyboard, mouse, and touchpad] Eliminates the traditional keyboard button function and features a large, highly sensitive touchpad for full touch panel operation. There's a mouse and keyboard switch button in the bottom left corner, allowing you to switch freely, making this mini keyboard perfect for all your input needs. [Backlit] This touch keyboard features a single-color backlight with three brightness levels, allowing you to use it even in dark environments. To adjust the brightness, press the Fn key and the space bar simultaneously. [Lightweight and Mini] Dimensions: 142 x 90 x 19 mm, weight: 118 g. It's about the same size as a cell phone, so it fits easily in your pocket and is very convenient to carry. [Buzzer Mode & Silent Mode] This mini keyboard has a buzzer that can provide feedback on your input status. The buzzer can be turned off by pressing the Fn and mute keys (located to the left of the space bar) at the same time, allowing you to use this keyboard in a quiet state without disturbing others. [Note] If the special characters in your key output are different from the characters displayed on the keys, it is because your keyboard is not compatible with the Japanese software on your computer. The standard Japanese keyboard is to input [], which corresponds to [@]. We recommend downloading a different Japanese input method or trying this product on a different computer.