U20 Lavalier Bluetooth Sound Collector Smart Auxiliary Bluetooth Headset(Black)

1. Material: ABS, electronic components
2. Features: Hearing compensation, Bluetooth calling, listening to music
3. Bluetooth version: 5.0
4. Sensitivity: 100-106dB
5. Frequency response range: 20Hz-20KHz
6. Input: DC 5V
7. Built-in battery: 200mAh lithium battery
8. Talk/play time: 10/15 hours
9. Standby time: 12 days
10. HIFI sound quality, HD calling
11. Waterproof and sweatproof, protect the internal components from damage, durable
12. Separate design, easy to carry
13. Back clip design, effective fixation, safe and convenient
14. Net weight: 24 grams