Sunbeauty&reg; Waterproof Mini Mushroom Wireless Bluetooth Speaker (yellow) Only sold by amtonseeshop. 100% brand new and high quality Silicon cover & ABS Plastic Bluetooth:Bluetooth 3.0, A2DP,HFP,HSP,CSR solution, high quality sound Driver:40mm, 4 3W; Built-in Battery: 300mAH, Li-ion battery Function Key:Volume +/-, Dial up/Hang up; Built-in Microphone:Yes