Voice Search Function: Our air remote mouse built-in microphone which can chat with friends or input words via voice.it can't across app. Only works for the built-in voice input search box or apps.IR Learning Function: Only the "Power" button can programme / learning Function .Compatible with equipment: Support Android TV Box, Mini PC, PC, Tablet.SpecificationTransmission method: 2.4G RF wirelessSensors: 6 axis GyroscopeNumber of keys: 18Range: more than the 10mBattery Type: AAA*2 (no included)Colour:blackMaterial:ABSPackage Contents:2 * Remote Control2 * RecevierOnly 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.