1. With FM function and portable handle 2. TWS series technology 3. Built-in 2000 mAh full 18650 original battery 4. Speaker: 2, external magnetic 4??5W, 45mm 5. Signal to noise ratio: more than or equal to 80dB 6. Bluetooth standard: 5.0+EDR 7. Working distance: more than or equal to 10 meters 8. Input voltage: less than or equal to DC5V (1A) 9. Battery: Built-in lithium battery 2000 mAh
