HIGH-QUALITY CRYSTAL CLEAR SOUND - Enhanced with powerful drive in the little device which offers impressively crystal highs, crisp-mids, and our special tuned bass radiator can produce deep bass. POWERFUL BASS - The unique bass technology and patented spiral bass port boost the low end frequencies for a stronger beat. HOME THEATER, COMPLETED - Modern design, exquisite and easy, easy and simple control. ADVANCED BLUETOOTH TECHNOLOGY - Advanced Bluetooth 5.0 technology provides fast, rock-solid signal transmission, which reduces power consumption compared to Bluetooth 4.2. 90 DAYS OF WARRENTY - For products purchased directly from Trevelyan store, you get 90 days Free Return & Free Replacement warrenty.