This is a device developed for in the car of the bluetooth MP3 Player used, is equip with professional high-performance bluetooth module and MP3 chip decoder.
it can play and transmit music from TF card to car sound via FM radio signal.
it can stream music from your mobile to car stereo via bluetooth.
it can be used as a hands-free car kit while driving through bluetooth.
this method of wireless signal transmission device, there is no need to modify anything in the car. it can be used both as the music player for entertainment purpose or the car's hands-free design for the driving safety purpose.

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Characteristics:
Bluetooth version: V3.0 + EDR
frequency: 2, 402-2, 480 GHZ
sensitivity: -42db +/- 3db 360
voltage: 5V +/- 0.5
Working current: 45mA (max)
Standby Current: 25mA (max)
effective distance: 5 m
output: 4dBm
Frequency:
FM Frequency: 87.5-108.0 MHZ
transmitted power: 87 dBuV / 107 dBuV
effective distance: 2 m