Feature 1Bluetooth 5.0 FM transmitter, with the functions of answering, hanging up, rejecting and redialing calls. 2Support Bluetooth stereo music playback, support MP3/WMA/WAV/FLAC/APE format music, support U disk memory card (not included) playback. 3Digital tube display, clear and intuitive, the operation is simple. With colorful atmospheres light, more attractive. 4Support car battery voltage detection, allowing you to know the battery status in time. 5Dual USB output, support 5V/1A and 5V/3.1A mobile phone charging, support charging recognition. 6Support 87.5108.0MHZFM full frequency point transmission. With automatic poweroff memory function, and support mobile phone navigation voice prompts.Item Type: FM TransmitterMaterial: ABS Rated Working Voltage: 12V-24VUltimate Working Voltage: 8-32VUSB1 Output: 5V/1AUSB2 Output: 5V/3.1ASupport Music Format: MP3/WMA/WAV/FLAC/APESupport U Disk Capacity: Maximum 64G (not include)Support Memory Card Capacity: Maximum 64GWorking Temperature: <70Battery Voltage Accuracy: 1VSignal to Noise Ratio: >60dBDistortion: <0.1%Frequency Response: 20Hz-20KhzLeft And Right Channel Separation: 60dBBluetooth Version: Version 5.0Bluetooth Sound Processing: With A2DP functionBluetooth Transmission Distance: Less than 10MBluetooth Microphone Effective Distance: 0.5-2MInstallation Instructions: Plug and Play .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x FM Transmitter1 x Instruction