Description:dual screen display Dual usb ports, mobile phone charging support Iso, plug and play power cables for European models, no additional wiring required In terms of sound quality, we made major adjustments to hardware and software. It is a good choice for people with high sound quality requirements.Feature:1. radio (fm or am, rds)2. TF card reader, u disk (audio)3. aux function4. bt-compatible function5. rca audio output can be connected to the subwoofer6. mobile app connection7. locator and find car function (optional)8. mobile phone voice assistant (voice control) (note: just turn on the mobile phone voice control switch via bt.If the user's mobile phone is in English, it is supported)9. Audio source copy function10. coloured lightsSpecification:Model No.: SWM-80B, SWM-80A (with locator function) (optional)Voltage: 12vSoftware solution: swt6d801Screen type: led digital tube and frequency screenPanel size: 188x58mm or 7.40x2.28""Illumination: colouredPacking Size: 208x84x125mm or 8.19x3.31x4.92"" (color box)Depth: 60mm or 2.36""Product weight: 398gPhone connectivity: via phone appRadio band: fm or amRadio chip: zt0811Power: 60wWorking temperature: -10 - 60 cModel compatible with bt: 5.0Power amplifier chip: tda7388Radio frequency: fm 87.5 - 108mhz, am 522 - 1620khzMemory card slot: support tf cardsRemote control: remote control cardSteering wheel remote control: yes, no (optional)Locator and find car function: yes, no (optional)USB port: 2 USB ports (one for charging and one for usb2.0 reading)Reset button: yesButtons: physical buttonsrca terminal: 4 rca outputsFront audio input aux: yesSupported audio format: mp3 or wma or wav or flac