Oval Shape TWS Earbuds BT Bluetooth Headphones Wireless Earphones

1. Jieli Chipset, AC6936D    V5.1

2.Battery capacity 50mAh

3.Battery voltage: 3.7V

4.Charging voltage: DC 4.8-5.5V

5.Charging current ≤ 40mA

6.Speaker specifications 32Ω / 3mW

7.Frequency range 15-15KHZ

8.Charging time <2H

9.Working standby time ≥ 150H

10.Shutdown standby ≥ 50day

11.Call duration ≥4H

12.Play music length 4H

13.Matching communication distance ≥ 10M

14.Product Size 75 * 40 * 30mm