EH0306B Features 2.4GHz wireless RF technology 10 meters remote control distance Ergonomic design Digital gyroscope air fly mouse and 56-key QWERTY keyboard Great for working with Android TV box/Android DVB/Smart TV/PC General Specs Brand & Model EA-02 Wireless Technology 2.4GHz Working Method Optical Operating Range Up to 10 m Battery 2 x 1.5V AAA Batteries (not included) System Required Windows/MAC/Android/Linux Package Details Weight: 105.93 g Size: 19.00*5.8*2.5 cm Package Includes * EA-02 2.4GHz Wireless Gyro Air Fly Mouse & QWERTY Keyboard for Android TV