DBEST London Eiffel Bluetooth Mini-Speaker with Mic and Magnetic"Install Anywhere" Base (PS4502BT-MPS) Amazingly powerful & ultra-crisp 3W speaker system Bluetooth wireless music streaming Built-in microphone for hands-free calls with auto answer Magnetic base with adhesive for the ability to 'Install Anywhere'(car,kitchen,wall..etc..) High-capacity lithium polymer battery (800mAH) for up to 20 hours wireless playback Automatic intelligent power-off system Compatible with all devices featuring 3.0+EDR Bluetooth or 3.5mm audio jack Compatible with all standard USB chargers (PC, Car, Mains)