Weanas Portable Wireless Bluetooth Mobile Speaker Sound Cannon with Stereo Bass Resonator Mic, Rechargeable Battery, Micro SD Card Reader, Free 3.5mm AUX Cable for Iphone, All Bluetooth Device Latest wireless Bluetooth speaker, high performance All in One Comes with internal mic, so it makes you hands free while you are calling Support TF (Mini Micro Card) iPhone 4s 5/iPad/Samsung/phone/laptop/Tablet PC /any bluetooth device Expanded Bxs (Bass Xpansion System) drives a fuller, richer low-end response Working Time: 5 Hours,Battery Charging Time: 2 Hours,Support A2DP, AVRCP, handsfree profile