M9 Dual USB Car Charger

M9 Dual USB Car Charger1. Lossless sound quality, fast charging, Bluetooth 5.02. TF card playback, hands-free Bluetooth call U disk playback3. 3.1A dual USB interface design, smart phone fast charging4. Smart chip, smart protection5. 3 modes: Bluetooth / TF card / U disk6. One-on hands-free call, built-in microphone, clear and smooth call7. Rotating shaft design, easy to use, signal-to-noise ratio>60db8. Built-in high-performance de module, lossless transmission9. Frequency response: 20-15000Hz10. Working temperature: -20-50 degrees Celsius11. Power supply mode: type car MP312. Material: ABS13. PC interface type: USB+TF14. Working current: 2.1A / 1A15. Power: 1w16. Output voltage: 5v17. Working voltage: 12-24v18. Transmission distance: 10-15 meters19. Music format: MP3/WAV20. Weight: 45g

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