(Updated Version with Much Stronger Signal)iPazzPort Raspberry Pi Mini Wireless Handheld Remote Control Keyboard with Multi Touch Touchpad Work for Android and Google Smart TV XBMC KP-810-21S

Features
92 keys, 2.4GHz wireless Keyboard with Touchpad
Touchpad DPI adjustable functions
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
Innovative shape, protable, elegant
The Ergonomically handheld design is easy to carry and operate
Build-in removable rechargable Li-ion battery that has longer standby time
Perfect for PC, Pad, Andriod TV Box, Google TV Box, for Xbox360, for PS3, HTPC/IPTV, etc
Specification
Operating range: 15 meters(MAX), without signal disturbance and no direction limit
Frequency range: 2.403GHZ ~ 2.480GHZ
Operational voltage: 3.3V
Charge Voltage: 4.4V ~ 5.25V
Modulation: GFSK
Channel: 78channels
TX Power: less than +5dBm
Transmission rate: 1M bit/sec
Frequency tolerance: +/-30ppm
Power consumption: 55mA(on),1mA(sleep)
Color:Black
Battery Type: Built-in lithium-ion battery
Notice: After 3 minutes without any operating will into sleep mode, press any key about 1s to wake up
Package including
1 * Wireless keyboard
1 * Wireless receiver
1 * Charging data cable
1 * User manual