Mini Vibration/vibro/vibrating Speaker

Features of portable Mini Vibration/Vibro/Vibrating Speaker for apple's ipod, iphone, mp3,mp4,computer, mobile: skype-joanna831225, 1. Fashion, small, portable, built-in rechargeable battery, mini-USB port. 2. Configuration: Host 1pcs, USB special cable 1pcsi product specification 1pcs, pure metal crust. Specifications of Mini Vibration Speaker: a) Power supply:DC5V ~ 6V, built-in rechargeable batteries b) Power consumption: Maximum 2.5W c) Frequency:100Hz~20kHz Vibro Speaker is able to turn any hard and flat surface(Such as table, wall, glass, metal and etc.) into external speakers for your iPod or compatible audio players. When you put it on a table, the table will become your speaker! When you put it on a glass surface, the glass becomes a speaker! When you put it on your home furnitures, your furniture will become your speaker.