InzhiRui Bluetooth Waterproof Speaker with Built in mic & Dedicated Suction Cup (Green) High definition Bluetooth 3.0 audio wireless connectivity with seamless streaming and 6 hours of playtime. Very easy to use, built-in microphone and convenient speakerphone, Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons Easy access to Hand free Talking / Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons. Water-resistant rated IPx4 that means it works well with daily water splash, but no immersing. Water resistant loud speaker and built-in mic for both outdoor and indoor use.