Features:
1. Bluetooth version: Bluetooth V5.3
2. Bluetooth chip: JL AC6955F
3. Battery: 400 mA
4. Effective range: about 10m
5. Charging time: 1.5 hours
6. Working hours: Bluetooth: 15h; Noise reduction: 40h; Bluetooth & noise reduction: 12h
7. Noise reduction main control chip: TI (Texas Instruments)
8. Depth of noise reduction: -20±2dB
Decripptions
1. Soft & Comfortable Protein Earmuff & Sponge
2. 40mm Speaker with Premium Sound Quality
3. 400mAh battery with 12~40hours Play Time
4. TI Active noise reduction chip reduce – 20±2dB noise
5. Retractable Over Ear Design
6. With 3.5mm AUX cable can be used as Wired Headphone and Bluetooth Headphone