1. 5.3 provides fast and stable low latency connections, making calls clearer.
2. Very light ear‑hook design, 180° rotating ear‑hook can freely switch between left and right ears.
3. Can play music for 10‑12 hours, and it can be used to charge the headset about 5 times with a 500 mA portable charging compartment.
4. Two charging methods, you can directly use the charging cable to charge the headset or put it in the charging compartment.
5. Fit for iOS and for Android, PC, laptop, tablet and other smart devices with function or with adapter.

Spec:
Item Type: Headset
Material: ABS
Model: YYK-525
Version: V5.3
Support Protocol: A2DP//HSP/AVRCP/EDP
Transmission Distance: ≤10m/33ft
Headphone Battery Capacity: Lithium Battery 100mAh (Included)
Rechargeable Battery Capacity:Lithium Battery 500mAh (Included)
Talk Time: 10-12 hours
Music Playback Time: 10-12 hours
Charging Time: About 1.5 hours
Standby Time: 400 hours
Speaker Impedance: 13Ω±10%
Rating: IPX7

packing list:
1 x Headset
1 x Charging Compartment
1 x Charging Cable
1 x Manual