SpecificationsItem Name: 2.4G Air Mouse Remote ControlColor: Black and SilverMaterial: Plastic and Silicone (NOT Mental)Main Item Size:.98*1.73*0.36inCharging Port: Type-CRemote control distance:＞10 meters Working temperature: - 20 ℃~65℃Modulation Frequency:2.4~2.4835GHzAmount of Keys: 58Remote Distance: 8-12mBattery Capacity: 3.7V 250mAhWorking Current: 33mAStandby Current: 25uAWireless modulation mode: GFSKSupport system: Android / Windows /LinuxApplicable to: Android TV Box/Mini PC/SmartTV/Projector/HTPC/All-in-one PC/TVPackage Included1 x W3 Air Mouse Remote Control 1 x USB Receiver1 x Type-C Charging Cable1 x User Manual Note- NOT compatible with most Samsung/Sony/LG/TCL/Panasonic/Roku smart TV. The power button may not turn on/off the android tv box if works with the above brand device. You can contact us to return and refund.- If not use the air mouse for a long time, please charge fully for it again.