Use 2.4GHz wireless control,working distance over 8 meters. 6 Axis Gyro-sensor with Speech recognition technology Communication: 2.4GHz;Working Distance: 10M included voice searching +2USD Frequency: 2.400-2.483GHz, Working Current: 20mA Battery:3AAA Batteries, Indicator: 1 LED indicator Product Size: 138.92*41.77*27.93mm, Weigh:65g System: Compatible for Windows, Mac OS, Linux, Android Country of Origin: China(Mainland) http://www.unuiga.com.cn/