Specification:Frequency: 2.4GHzMax Output: Less than 5mWControl Distance: 100mLight Distance: 200 mWave Length: 650nmLight: class Working Voltage: 3.6V-4.2VSleep Current: Less than 5uABattery: 240mAh lithium polymerCompatibility: Windows 2003, XP, Vista, Windows 7/8/10, OS, Linux, Androidcolor: Blackmaterial: plastic Note:The product is not toys and should not never under any circumstances be directed into people's eyes or at passing aircraft. It should be used by anyone under 21. It's illegal to direct at any flying objects, moving vehicle and any public or private structures.Package Contents:1 x USB wireless pointerOnly the above package content, other products are not included.Note: Light reflection 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.