M416 Car Bluetooth Receiver Player Audio Receiver Adapter AUX Converter 1. Battery capacity: 120mAh 2. Usage time: about 10h 3. Sensitivity: -42dB 4. Charging interface: Type-C USB-C 5. Bluetooth version: 5.3 6. Transmission distance: about 10m 7. Signal to noise ratio: greater than 90dB 8. Frequency response: 20Hz-20KHz 9. Output power range: 33mW RL = 16 ohms 10. Audio transmission mode: A2DP, AVRCP 11. Frequency range: 2400-2483.5MHz 12. Size: about 8.75 x 1.4cm Features: 1. Widely compatible, plug and play, works with audio devices that have an AUX input interface 2. Connects mobile phone to car stereo, allows music playback and navigation audio from phone for safer driving 3. Built-in microphone supports hands-free calling with clear voice quality 4. Powers on automatically and reconnects to previously paired device 5. Converts wired headphones into wireless use 6. Bluetooth 5.3 ensures low power consumption, fast connection, and stable signal transmission 7. Built-in high-performance decoding module supports high-definition audio and stereo sound 8. Integrated digital noise reduction chip enhances voice clarity and call quality