| 1.Brand:RUIYI |
| 2.Battery capacity:40mA/H |
| 3.Bluetooth version :4.2 |
| 4.Support Agreement:Headset/Hands free/A2DP/AVRCP |
| 5.Call duration:Approximately 5 hours |
| 6.Music duration:Approximately 4hours |
| 7.Working voltage:3.4V-4.2V |
| 8.Working current:4mA-15mA |
| 9.Standby current :《1mA |
| 10.Bluetooth frequency:2.441 GHZ |
| 11.Bluetooth distance:The straight line distance is more than 15 meters, and the back distance is more than 10 meters. |
| 12.Standby duration：More than 60 hours |
| 13.Speaker Impedance：32Ohm |
| 14.Speaker Diameter：7.8mm |
| 15.Earphone sensitivity：96DB |
| 16.Maximum power：0.3mW |