1. Voice microphone2. For Celulares smart phones (connected via OTG cable)3. Wireless (RF 2.4G) connection, smart portable size4. Enjoy PC multimedia entertainment at home5. Use with Android box and smart TV6. Share big TV and projector screen7. Perfect control entertainment function8. Portable, elegant, and lifestyle choices9. Air mouse, natural hand movement.10. Perfect keyboard Press combination11. Convenient and efficient meetings, presentations, and speechesspecification:Radio frequency: 2.4G HzTransmission method: 2.4G wirelessSensor: 6-axis gyroscopeNumber of keys: 18Battery type: AAA*2 battery (battery not included)Button life: more than the 100,0000 timesTransmission length: 10 metersOperating system support: Windows XP/Vista/7/ MAC /Linux/AndroidFunction keys: UDLR (up, down, left, right), volume up and down, return, main menu, etc.Style:A Flying squirrel + voice / B 2.4G+voiceColour:blackMaterial:ABS+siliconeSize:160 x 45 x 20mmPackage Contents:1 * G20 remote control1 * USB receiverOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.