1. Wireless Bluetooth V5.0, 10m transmission distance 2. Automatic pairing, support binaural wireless calling function 3. Charging case battery: 300mAh, earbud battery capacity: 40mAh 4. Magnetic absorption, automatic charging when put it into the charging case 5. IPX4 waterproof and sweatproof 6. 3.5 hours talking time, 3 hours music time
