Complaint
| Contact Informations : | Manager : Hara Whats App:+86-15323728632 |
| Product model | Air Pro 4 |
| version | V5.1 |
| Battery specification | earphone 3.7v ; Charging bin 3.7v |
| Supported mode | HFP/HSP/ A2DP/AVRCP |
| Sensitivity | 105dB ±3dB S.P.L at 1KHz |
| Signal distance | 10 m (in an ideal environment without any large obstacles) |
| Playing time | about 2.5 hours |
| Talk time | approximately 3 hours |
| Standby time | about 80 hours |
| Charging time | charge the charging warehouse for about 1.5 hours and charge the headset for about 1 hour |
| Charging times for the headset | about 15 times |
