Features: 1.Voice Input: This air remote control features voice input function that allows you to chat with friends or input words via voice, offering more convenience. 2.6 Axle Sensor: This PC remote is designed with 6 axle sensor and anti shake arithmetic that provide accurate and comfortable control. 3.2.4G RF Wireless: This remote control mouse comes with USB receiver that supports 2.4GHz RF wireless connection with your devices, offering stable and highly sensitive wireless control. 4.Widely Compatible: This air remote mouse is compatible with all devices with USB interface, such as TV box, PC, TV, media player, tablet, game machine and HTPC, etc. 5.Battery Powered: This voice remote control is powered by 2 piece of AAA batteries(battery not included). Remote control enters into sleep mode after inaction. specification:Item Type: Air Remote Control Material: Plastic Cement, Silicone Sensor: 3 Axle Sensor + 3 Axle Accelerometer Control: 2.4G RF Operating Frequency: 2400MHz to 2483.5MHz Number Of Keys: 16 Keys Remote Control Distance: 10 Meters / 32.8ft Working Current: 10mA Supported Systems: For Win, for OS X Laptop, for Linux, for Android Battery: AAA x 2 (Battery Not Included) Product Size: Approx. 158 x 41 x 14mm / 6.2 x 1.6 x 0.6in ( Manual Measurement, Slight Error May Exist ) PackageList:1 x Air Remote Control 1 x USB Receiver 1 x User Manual