1. It can be connected to Bluetooth, make and receive calls, listen to music, and watch TV easily; 2. Lighter and less burdensome to use; 3. Smart chip, intelligent noise reduction; 4. Large battery capacity, charge for 1 hour, use for 20-30 hours; 5. One switch key, one volume adjustment key, one M Bluetooth key, easy to use; 6. FCC, ROHS, CE, EMC certification;