BSWHW Portable Speaker & Shower Speaker Wireless Outdoor with Bass,Stereo,Super Waterproof Dustproof Shockproof, Sport Hi-Fi, For iPhone,iPad,Samsung,HTC, PC or More (Green) Large volume and fill your room with music. The size is small enough to be easy to carry anywhere you want to go. 500mAh built-in lithium-ion battery, up to 6 hours non-stop playback time per charge, charging via included Micro USB charging cable. The inner magnetic design generates the high quality sound. Music volume can be adjusted easily from the speaker. Built-in Microphone for hands free calls, online video chatting, Skype, Facetime etc. Truly Waterproof Speaker - Please note, this speaker is waterproof but is not suitable to immerged in water