Unique Model, AP Station--Joypad specially for Apple products,Large built-in backup battery capacity, Stereo speaker, vibration Unique Model, AP Station--Joypad specially for Apple products AP Station, joypad for iphone,ipad and ipod touch, Large built-in back up battery capacity, two stereo speaks and vibration function. Parameters:Battery: 3.7V/2400mAhMusic playback time:20 hoursInput: 5V/ ...