... technology 2.DSP 3. 3D EQ 4. lithium battery Bluetooth hand-free speaker for iPhone, iPad, PDA Specifications:- Valid distance: within ... - A2DP technology - Suitable for Apple iPhone, iPad, iPod touch, Mobile phone, PDA and Computer, etc. with bluetooth function - Unit dimension ... speakermusic automatically would be paused while incoming phone call.free switch from speaker to your phone while you are ...