Ecandy Wireless Bluetooth Waterproof Shower Speaker with Dedicated Suction Cup - Retail Packaging-Pink Very easy to use, built-in microphone and convenient speakerphone, Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons 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 Easy access to Hand free Talking / Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons.