1. 【Voice input Our air remote mouse built-in microphone which can chat with friends or input words via voice. Please note that the Voice Search Function doesn't works like Alexa Voice Remote, it can’t across app. Only works for the built-in voice input search box or apps. 2.【3 in 1 Air Remote Mouse】2.4G Air mouse + 6-Axis Gyroscope + IR remote learning mouse. 3.【 Wireless connection】2.4GHz wireless connection via a USB receiver, plug and play, you can snuggle on the sofa and enjoy long-range wireless control up to 10 meters /32.8ft. 4.【Convenient to Use】18 keys air remote mouse, easy to control volume, page up /down, Mouse left /right, etc. Just sit back on your couch and enjoy. 5. 【Widely compatible with almost all android device (which have USB input): Smart TV, Android TV box, mini-PC, HTPC. Supports System: Linux, Android 2.x, Android 4.x, Win 2000, Win vista, Win7 32, Win7 64, Win8 32, Win8 64, MAC OS X. (2xAAA battery not included) This air mouse may be not compatible with some Smart TV, because the third-party USB dongle is blocked. You need to confirm your smart TV can recognize third-party USB dongle and support other remote control except its original remote.