1.high fidelity stereo sound. 2.super bass passive radiator. 3.5x2 powerful drivers. 4.playback time upto 8 hours. 5.shok proof. 6.ipx6 water proof. 7.audio connections 3.5mm line in. 8.mic for calls. classic material.no,plastic chassis. technology used,advanced bluetooth 4.0 technology. control- volume, play,pause remote control support-wireless driver size 40mm 1500 mAh lithium battery full charge in just 4-5 hours water proof,shockproof & dustproof