bluetooth 5.0 fm transmitter car kit mp3 modulator player wireless handsaudio receiver dual usb fast charger 3.1a

features: rated operating voltage: dc12v-24v working voltage limits: 9-26v usb1 output: 5v/3.1a usb2 output: 5v/1.0a , read usb flash music. working temp: 0-50 support play format: mp3 bt version: version 5.0+edr bluetooth sound processing: a2dp(advance audio distribution profile) bluetooth transmission distance: 10m bluetooth microphone effective range: 0.5-2m fm transmission frequency: 87.5-108mhz