SWM D3400 Car Bluetooth MP3 Player Support Smart Voice Assistant FM 1. FM radio, FM 87.5~108MHz (optional national standard FM radio frequencies) 2. AUX, Bluetooth function, support TYPE-C interface, TF card, reset button 3. RCA audio output can be connected to subwoofer, colorful lights 4. Voice assistant function (in Bluetooth mode, short press the No. 2 button to activate the phones voice assistant function) 5. Mobile phone APP function, positioning and car search function (connect to the car machine through the mobile phone APP, and you can find the location where the car stopped when the car was turned off and left on the mobile phone) 6. Audio source copy function (when a U disk or TF card is inserted, press and hold the knob in radio, BT music, AUX mode, and the current favorite audio or radio station can be stored in the TF card or U disk for easy playback next time listen) 7. Mobile phone stand function (can be used as a mobile phone stand) 8. Positive and negative reverse connection protection function of power supply (wrong connection of positive and negative poles of the power line will not cause circuit board burning function) 9. Parameters: - Software solution: Ab5301F - Radio IC: integrated chip - Amplifier IC: TDA1028 - Output power: 45Wx4 - Working voltage: 12~14.4V - Working temperature: -10~60 degrees Celsius - Bluetooth version: version 5.0 (default name: CAR BT) - CPU: Ab5301F - Screen size: LED display (white light) - Audio format: MP3WMAWAVFLACAPE - Language: English - Remote control power supply method: AAA battery x 2 (not included)