... Speaker for Mobile Phones,MP3,MP4,PSP,Laptop,Desktop X3 X3 Product Features1, Comply with Bluetooth 2.1+EDR2, Music playback time ... all of Bluetooth audio device7, Dimensions 80mm x 42 mm8, Ultra-simple style design9, Hidden key design10, Aluminum case design, top ... Details show: X3 small speaker for bluetooth cell phone for Mobile Phones,MP3,MP4,PSP,Laptop,Desktop X3