BLUETOOTH HANDSFREE CAR KIT FM TRANSMITTER AKAI FMT-74BT

Wireless transmits phone call & audio playing to the car FM stereo
system via Bluetooth
Switch Hands-free model automatically from music playing status
when receiving phone call.
Detects the voltage of Car Battery when power on
Supports reading TF card and USB disk (maximum 32 GB)
With line-in/out function
Supports USB charger 5V/1A+QC3.0
Bluetooth Version: 5.0
Bluetooth protocol: AVRCP, HFP, A2DP
Frequency range: 87.5-108.0MHX
Frequency stability: ±10ppm
Music format: MP3, WMA