Battery type：AAA1.5*2V Operate Distance： ＞8m Function: 1. 12-in-1 , operate your TV, VCR,SAT,CABLE,VCD,DVD,AMP, AUX . 2. Operates major brands and modules; 3. Perfect Replacement for lost or broken remote control; 4. Preprogrammed for easy set up (SET+TV)=Ready