... 5 open-ended systemButton to switch, wireless infrared remote control packing1pcs/ Color Blister card 72pcs/ctn ... D.5cm ,H,11.5cm W,13.5cm remote control : 15x5x2cm Products materialfoam glue ball , EPP ... polymer lithium ion rechargeable batteries. 3,The remote control is used by four AA/LR6alkaline batteries ... not use until it is repaired.2,The remote control is used byfourAA/LR6 alkaline batteries. ...