Patuoxun Bluetooth A2DP ISSC V3.0 Wireless Sport Stereo Handsfree Speaker (Green) The shell of speaker is made of the sealed Aluminum alloy and has great waterproof and shockproof performance, and its 5W speaker offer you high-quality stereo! The silicone case and interface design ensure great seal and can effectively prevent water (the waterproofing grade is IP5) and dust, can be used under harsh environment It has built-in MIC Bluetooth speaker and hands-free function, so you can conveniently pick up a call by this mini speaker in car, bathroom, at home or office, anywhere during it is connected to your Smartphone. The suction cup at the back of the Speaker can be easily attached on the wall or any flat surface and is great for shower, baths, swimming pools, and boats, marine Power display function: Can show the battery capacity on iPhone iOS 6.0 or above