Features:
1. Support Bluetooth, SD card (not included), 3.5mm AUX cable (not included) to play music
2. The head beam can be telescopically adjusted, suitable for head circumferences of different sizes
3. Leather earmuffs, soft and comfortable to wear
4. Foldable for easy storage
5. With storage box

Product Specifications:
1. Chip: Jerry AC6955F
2. Bluetooth version: 5.0
3. Transmission distance: about 10m
4. Frequency response: 20-20KHz
5. Speaker sensitivity: 110dB+/-3dB (at 1KHz/0.178V)
6. Speaker specifications: 40mm 19U 32 ohms
7. Rated power: 10mW
8. Power: 20mW (max)
9. Battery specification: 300mAh
10. Playing time: about 6 hours
11. Charging time: about 2 hours
12. Microphone sensitivity: -42+/-3dB
13. Charging requirements: DC 5V-100mA
14. Bluetooth protocol: A2DP1.3, ACRCP1.5, HFP1.5, SSP1.2, HSP1.2
15. Charging interface: Micro USB