We are offering Mini Keyboard Air Mouse Mini Keyboard.2.4GHz RF signal has a rang of 10M, Adopts frequency hopping technology, high anti-jamming user-defined 2.4GHz communication protocol 3 Axis gyroscope and Mini Keyboard(6 Axis +2USD option) LED will shine when the battery voltage lower than 2.4V Supports all the keys awakening and loss-reconnection Auto enter into sleeping state for 5mins no-movement 3 AAA batteries, 2 hoursday can be used two months Can be adjusted freely move the cursor speed size:20 2.7 6cm, Weight:150g, http:www.unuiga.com.cn