Wireless Bluetooth Hifi Speaker Mini Portable Bluetooth Speaker, Alloy Steel Housing, Powerful Loud and Clear Sound with Bass. Reads Music From Sd Cards and Has Built in Mic. Works with All Iphone, Ipad, Itouch, Blackberry, Nexus, Samsung and All Phones and Mp3 Players. Speaker System Has Built in Rechargeable Battery Tf Slot Handfree Stereo Mic Black Loudspeaker Output: 3w Talking time: Up to 5 hours Bluetooth range: Up to 10meters Bluetooth protocol: version 3.0 Support A2DP,AVRCP,headset,handfree profile