Cooligg Waterproof Mini Bluetooth Ball Speaker Mic/Call W/ Sucker Blue Mini Size Super Portable:Ultra Compact size lets you easily move the portable speaker around,superlight and easy to fit in your backpack, baggage,Perfect for travel, shower, hiking. Stereo Sound Speaker:Support A2DP and built with a 3W speake It can streams incrediable stereo sound with full range output, crystal clear articulate high end. Wireless Speaker:Bluetooth wireless technology allows for an easy simple connection. Playback from up to 33 ft away from any Bluetooth enabled device including, Tablets, Smartphones, IPads, iPhones etc. Hands-free function:It has built-in MIC Bluetooth speaker ,so you can conveniently pick up a call by this mini speaker in car, at home or office, anywhere during it is connected to your Smartphone. Mini Size with Long Music Playtime:Built in rechargeable battery, supports up to 4 hours playing time at the volume to 70% of the maximum volume.