Features: 1. BT Connection, Answer Calls, Listen To Music, Watch TV; 2. Silicon material, very soft, safe to use; 3. Smart Chip, Intelligent Noise Reduction; 4. Big Capacity Battery, Charge For 2 Hours, Use For 40 Hours; 5. One power button, one volume control, M button for Bluetooth Function, easy to use. 6. FCC, ROHS, CE, EMC Certifications available. .