... in, apply to PC,mobile phone,mp3.mp3, etc Specifications Portable size Built-in bluetooth RF wireless module Metal cabinet,rechargeable ... RF wireless module,meets the latest Bluetooth 2.1+ED standard 3.Support Bluetooth stereo sound,perfect sound quality,outstanding bass ... .:0.5KG4.50PCS/CTN Blue and white porcelain wireless rechargeable portable,mini bluetooth speaker for iphone &ipad&PC