Item Name: 1Din Car Radio Stereo Bluetooth FM Audio Head Unit Player MP3/USB/SD/AUX In-Dash. Product DescriptionBullet Points:1. Support Bluetooth audio music and hands-free calls, built-in AUX function, premium audio output can be connected to the subwoofer, support active subwoofer.Great version,packaged perfectly.2. Digital premium FM stereo AM/FM radio (FM 87.5~108MHz/A522~1620KHZ) supports FM1, FM2, FM3 three bands, can store 18 FM radio stations.3. Support card reading, U disk reading (broadcasting), support audio: MP3/WMA/WAV/.4. Power-off memory: memorize frequency, track, volume, after power off and restart, start playing from the song when power off, avoid listening again, time display: one-key switch time display, real-time control of time.5. Voice assistant function: (After successfully connecting to BT, in BT mode, long press the knob to enter the voice assistant).Specifications:Model: 616Voltage: 12VType: Car MP3Software solution: A3901Screen model: LCD_VAPanel size: 188*58mmPanel light: blue lightPacking size: 205*148*76mmHost depth: 60mmSingle machine: 370gRadio band: FMRadio chip: chip integrationPower: 4*60WWorking temperature: -10~60 degreesBluetooth model: version 5.0Power amplifier chip: YD1029Radio frequency: FM 87.5~108MHz/A522~1620KHZTF card slot: TF small cardRemote control: steering wheel remote controlUSB interface and version: one USB2.0 interface, one USB 2.1A charging interfaceReset button: YesButton: physical buttonTerminal introduction: 2 outputs (red/white lotus jack)Supported audio format: MP3/WMA/WAFront aux audio input: YesPacking list:1x MP3 player1x Power cord1x Steering wheel remote control1x Manual2x Disassembly keyNotes:1. This machine is a 12V machine and does not supply power according to 24V2. As long as the installation size of the car audio matches the size of the machine, it can be installed and used.3. When installing the machine, be sure to connect the wires correctly. If the machine is not