COISOUND Waterproof Wireless Bluetooth Shower Speaker Handsfree Speakerphone Compatible with All Bluetooth Devices Iphone 5s and All Android Devices (Green) Very easy to use, built-in microphone and convenient speakerphone, Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons Compatible with all Bluetooth media player or phone.6 hours of playback time, 120 hours of standby time, 10M transmission range, applicable for iPhone, iPad, tablets, smartphones, iPods, MP3, MP4 and any other Bluetooth players Speakerphone can answers calls and hold conversations through the built-in microphone With a suction cup for easy attachment to Glass wall or any flat surface Good for showers,atv, baths, swimming pools, boats,jeep,tv