| Product Name | blueoth speaker |
| Bluetooth transmission power: | CLASS2 4dBm |
| Bluetooth working frequency | 2.4GHz |
| Charging voltage | DC5V/500mA |
| Working voltage | DC 3.7V |
| Battery capacity | 4000MA |
| Music playing time | 12H |
| Talking time | 30H |
| THD | ≤ 0.1% (3.7V/1KHz/1.8W) |
| Signal to Noise Ratio | ≥90 d |
| Bluetooth range | 10-20m |
| Colour | red ,blue,black,green,gray |
Contact us:
Telephone:+86 755 25608673
Address:Floor 8,huguang building,Longgang Road, Shenzhen China