... scroll ball, laser pen, 3in1 multi function wireless keyboard. It comply for pad, Android box,Smart TV CK12 Mouse\ ... keyboard\Laser 3in1 Keyboard, laser scroll ball, laser pen, 3in1 multi ... , recharging, full power indicator, background light, touch mouse for option Technical specificationsWorking frequency2.4GWorking scope10MTransfer power0dbmWorking voltage3 ...