iKANOO BT001 Portable Bluetooth Speaker with Mushroom Shape and Microphone, Metallic Built-in Bluetooth 3.0 wireless technology for any Bluetooth-enabled devices, such as iPhone, iPad, Galaxy, Nexus, Smartphones, and Tablets Hands-free Speakerphone function. On-speaker volume adjustment and on/off button. Built-in rechargeable lithium-ion battery 500mAh AUX input with 3.5mm audio line to connect to non-Bluetooth devices. Charge via USB port. Power Output : 3W