| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
| Model | BC09B |
| Rated working voltage | 12-24V |
| Limit working voltage | 9-26V |
| USB output | 5V /2.1A |
| Working temperature | 0-50°C |
| Charging identification | Support |
| Play format | MP3 |
| Battery voltage display accuracy | Error±1V |
| Load current | Error±0.1A |
| SNR | >60dB |
| Degree of distortion | <0.1% |
| Frequency response | 20Hz-15Khz |
| Resolution of right and left channel | >60d |
| Bluetooth version | Version 3.0+EDR |
| Bluetooth sound processing | A2DP (Advance Audio Distribution Profile) function supported |
| Bluetooth transmission distance | <10M |
| Effective distance of Bluetooth microphone | 0.5-2M |
| FM frequency | 87.5-108.0Mhz |
| FM Mode | Stereo digital PLL frequency locking |






