Measy Wireless 2.4G Fly Mouse and Remote Control for Android TV Box PC Smart TV RC9 It has computer keyboard function and infrared ray remote function. Support Operating System: Windows 7 / 8 / XP, Android / MAC OS 10.0 / LUNIX 9.0 OVER, &lt;br&gt; RF radio frequency: 2.4G RF; Signal transmission mode: 2.4G RF Main Components: Remote + USB receiver. Power: 3.7V Lithium battery.