Features:

92 keys, 2.4Ghz wireless Keyboard with Touchpad.
Touchpad DPI adjustable functions.
There is a backlight
Built-in high sensitive smart touchpad with 360-degree flip design
Mini QWERTY keyboard with multimedia control keys and PC gaming control keys.
Auto sleep and auto wake mode.
The Ergonomically handheld design is easy to carry and operate.
Build-in removable rechargable Li-ion battery that has longer standby time.

Specification:

Maimum operating range: 10 meters
Frequency range: 2.403GHZ ~ 2.480GHZ
Operational voltage: 3.3V
Charge Voltage: 4.4V ~ 5.25V
Modulation: GFSK
Layout: UK
Channel: 78
TX Power: less than +5dBm
Transmission rate: 1M bit/sec
Frequency tolerance: +/-30ppm
Power consumption: 55mA(on), 1mA(sleep)
Battery Type: Built-in lithium-ion battery