Feature: 1. This keyboard is black with colorful LED backlight, you can long press [Fn + F2] button at the same time to change the backlight to blue, red or green. 2. It is like mouse, transforming your spatial movement in the air into precise displacement on the screen. 3. It can be used as keyboard, and you can use it to replace USB keyboard. It can be used as a remote control, you can program it and learn some important keys from the TV remote control. 4. The high‑sensitivity touchpad can be operated easily and accurately. Plug and play, no software is required, and the USB receiver is located on the back of the keyboard. 5. Mini keyboard and mouse combination, with multimedia control keys and PC game control keys. The 92 key adopts 360‑degree flip design and has a built‑in removable rechargeable lithium battery. Specification: Condition: 100% brand new Item type: Small Wireless Keyboard Material: ABS Color: black Weight: Approx. 142g Sleep current: <1mA Working distance: about 15m Transmitting power: +5db Operating current: <50mA Charging current: <300mA Power supply: lithium battery Model: DL-5C 1020mah Button life:> 100,000 times Transmission length: about 10 meters Standby time (days):> 20 days Power switch: turn on/off the device Colour: Black Can be connected to desktop, notebook, car TV, for HTPC, large screen TV, smart TV, hard disk player, internet player, for X-BOX 360, for PS3 Supported operating system: for Win XP / for Vista / 7 / for OS X / for Linux / for Android Keyboard layout: for QWERTY (English) can be customized for different native languages. Function keys: UDLR (up, down, left, right), volume to increase and decrease, return, main menu, etc. Features: wireless (RF 2.4G) connection, smart, portable size System Requirements: 1. for Win 2000/for Win XP/for Win Vista, for Win CE, for Win 7 2.for Linux(for Debian-3.1, for Redhat-9.0 for Ubuntu-8.10 for Fedora-7.0 tested) 3.for Android Features: 1.92 keys (74 standard keys + 18 media keys) 2. Built-in 2.4G wireless receiver 3. Adjustable for DPI 4. Left and right mouse function keys 5. Page up and down function keys. Package List: 1 x Wireless Keyboard1 x Data cable1 x Bluetooth receiver1 x Instruction