True Wireless Earbuds have noise canceling (ENC) function. They have built-in rechargeable lithium battery.

They can be charged inside the case and have LED charging light with 4 indicators.

Specifications:

- Connection type: Bluetooth.
- Lithium battery inside the case: 500mAh/3.7V.
- Lithium battery inside the headphones: 2 x 50mAh/3.7V.
- Power supply: USB C 5V/1A (max).
- Wireless range: Up to 10 meters.
- Play time for talk/music: Up to 4 hours.
- Waiting time: up to 7-10 days.
- Charging time: about 1 hour.
- Frequency for Bluetooth: 2.4 GHz.
- Depth of noise reduction: 33-38dB.