NWT Nyko Shock 'N' Rock 5 in 1 multifunction add on for Game Boy Advance

NWT 5 in1 multifunction Add on for enhanced fame play 15 hour rechargeable battery Adjustable rumble/ vibration feedback amplified stereo speakers Ergonomic design Electronics are new in box. They are not tested and not sure if they function properly. Please test them to make sure they work properly before your window closes to return item.