General description 1 DIN Retro Car Stereo Audio Automotive Bluetooth with USB USB/SD/AUX Card FM MP3 Player PC Type: ISO-5513. This versatile car stereo supports hands-free calls and advanced audio transmission modes, making it an excellent choice for music lovers on the go. Technical specifications Radio frequency: 87.5-108 MHz Output power: 60W x 4 Work Voltage: DC 12V Supported audio formats: MP3, WMA, WAV Preset radio stations: 18 (FM1-FM2-FM3) Dimensions: Measurement allowed error is +/- 1-3 cm Compatibility and accessories Supports USB/TF card reader Includes 1 x MP3 Player Includes car speaker cable set Includes 1 x Remote control (without battery) Includes 2 x Removal Key Includes 1 x English Manual Usage Supports pause, preview, repeat, random play, and 10 tracks up/down selections Features electronic bass/treble control and left/right balance control Multiple EQ scenario modes available: rock, classical, etc. Supports mute and equal loudness (LUOD) control Front AUX audio