1. Material: Plastic
2. Sensitivity: 100dB
3. Impedance: 32 ohms
4. Rated input: DC 5V 1A
5. Frequency response range: 20Hz-20KHz
6. Channel: 2
7. Bluetooth version: V4.1
8. Effective distance: 10m
9. Charging time: 4 hours
10. Bluetooth protocol: HFP,
HSP,
A2DP,
AVRCP
11. Battery capacity: 1340mAh
12. Working hours: 80 hours
Features: CSR chip plus Bluetooth 4.1,
transmission without delay,
clear sound; with 3.5mm audio interface,
can be converted to wired mode; dual batteries,
long-lasting battery life; the head beam is tough and durable,
retractable; earmuffs can be folded and stored,
easily portable ; Built-in omnidirectional high-sensitivity microphone,
can record calls; key operation,
simple