Compatible Systems Android, Windows, Mac OS and LinuxConnection 2.4G wireless remoteVoice input Google voice searchControl Distance 10 metersTransmission Power +5dB MaxSensor 3 axis gyroscope + 3 axis accelerometer (optional)Battery Type 2 x AAA battery(not included)Working Current 15mAInterface USB 2.0Response Speed 2msFull button IR learning 12 Keys IR Learning Function( Default Mi IR codes)Return Button Press and Hold 2 seconds go back to the Home screenProduct Weight about 64gProduct Size 15.07x 3.84x 1.2cmPackage Contents 1 x U12 Voice Remote Controller1 x USB Receiver1 x User Manual1 x