EH0187B Features RF 2.4GHz wireless connection Convenient and efficient for conferences， presentations and lectures Easy to share on a large TV or projector screen Allows you to enjoy PC multi-media entertainment， Android TV box and smart TV at home General Specs Brand & Model auxtek AM12 Frequency 2.4GHz Remote Range 10 m FM Mode GFSK Transmitter Power 0dbm Rated Power 3.0V 12mA Port USB2.0 Operating System Windows/MAC/Android/Linux Working Temperature 0-50 degree Package Details Weight: 86.67 g Size: 21.00*6.00*3.00 cm Package Includes * auxtek AM12 Air Fly Mouse + 2.4GHz Wireless HTPC Remote Control