1. BT version: V5.2 2. HIFI sound quality 3. 2000mAh super large battery capacity, can also be used as a power bank to charge mobile phones 4. Intelligent noise reduction, call. Listening to music intelligently filters noise 5. Ergonomic design, comfortable without fear of falling off 6. Connection distance: 10 meters 7. Battery life: approximately 120 hours
