Model Number: DSIT011-#3768 Brand Name: Doosl Key Specifications/Special Features: Specifications:TransmitterTechnology: radio frequencyFrequency: 2.4GHzControl distance: 100mClass 2RMax output: <5mWDistance: >200mWavelength: 650nmBattery: 240mAh polymer Lithium
Working voltage: 3.6V-4.2V
Sleep current: <5uA
Dimension: 78*37*18mm
Weight: 26g

USB receiver
Operation System: Windows 2003, XP, Vista, Windows 7/8/10, Mac OS, Linux, Android
Dimension: 18.5*14.5*6mm
Weight: 2g

Packageincludes:
1*Dooslrechargeablewirelesspresenter
1*User’smanual
1*USBcable

Safety warning:
Be warned that 2.4GHz pointers are not toys, they should never under any circumstances be directed into people's eyes or at passing aircraft.
The pointer is not a toy and should not to be used by anyone under 21
It is illegal to direct the beam at any flying objects, moving vehicles and any public or private structures
A pointer should not be directed at people or animals
A pointer can be dangerous if not used properly