HY66 Bluetooth car adapter
Merchant VideoStable Bluetooth 5.4 connection - Automatic connection when starting the car after the first pairing.

Bluetooth Car Adapter
Wireless FM Transmitter, Dual Fast Charging, Supports Hands-Free Siri Google Assistant & USB Drive
Usage Tips---Strengthen Connection
- Find a blank channel (FM 88.1-107.9) on the car radio, press the [ CH/EQ ] key to enter channel adjustment mode. Rotate the [Top knob] to adjust the FM transmitter frequency to your car radio. Press the [CH/EQ] to fix.
- Please try a few channels and find the clearest frequency before fixing it.
- Press twice the [ CH/EQ] key to enter EQ mode.
- The display shows [ EQ0] for natural effects and [EQ1] for deep bass effects.


Type C & 2 USB Ports
The Bluetooth car adapter has 3 USB ports.
- 1* Type C port Output : PD 30W 5V/3A 9V/3A 12V/2.5A.
- 1* QC3.0 Charger port Output : 5V/3A 9V/2A 12V/1.5A.
- 1* Normal USB port USB flash drives.

What car does it suit?
- Perfect solution for older cars or those without an AUX port.
- The FM adapter can work with a car that has an FM radio and a cigarette socket.
- The interface length of the Bluetooth adapter is 1.7 inches.
- Please ensure that the length of your car's cigarette lighter is compatible before purchasing.
How to pair the car radio with this FM transmitter?
1 Plug the FM adapter
2 Search and choose a blank frequency on the radio
3 Press the[CH]key to enter frequency adjustment mode
4 Rotate the top button to adjust the adapter's frequency to the same as car radio
5 Press the[CH]key to fix this frequency
How to Pair cellphone and this transmitter?
1 Plug the FM transmitter.
2 Turn on the cell phone Bluetooth, search and choose “HY-66”.
3 After a successful pairing, the call hands-free function and the transfer audio function are active.
How to change FM frequencies if there are static/ interference issues?
1 Search and choose a blank frequency on the radio
2 Press the[CH]key to enter frequency adjustment mode
3 Rotate the top button to adjust the adapter's frequency to the same as car radio
4 Press the[CH]key to fix this frequency
How to set the optimal volume?
Recommended settings: Phone setting 75-80% volume, the fm transmitter setting 70-80% volume, the car setting 50-60% volume.
What car and phone is this Bluetooth adapter compatible with?
The LIHAN Bluetooth FM transmitters are compatible with virtually all cars that have a 12V cigarette lighter power outlet and an FM radio.
Works with Cars, Trucks, SUVs, motorcycles, RVs, and boats with standard 12V systems
LIHAN Products
HY66 Bluetooth car adapter
Merchant VideoStable Bluetooth 5.4 connection - Automatic connection when starting the car after the first pairing.

Bluetooth Car Adapter
Wireless FM Transmitter, Dual Fast Charging, Supports Hands-Free Siri Google Assistant & USB Drive
Crystal clear audio transmission, HiFi Bass enhancement
Clear microphones with noise cancellation (CVC technology)
Built-in over-current, over-voltage, short-circuit protection, and intelligent temperature control
For a 12V car, the normal range is 11.5V -14.9V
For a 24V car, the normal range is 23.1V -27.3V

Usage Tips---Strengthen Connection
- Find a blank channel (FM 88.1-107.9) on the car radio, press the [ CH/EQ ] key to enter channel adjustment mode. Rotate the [Top knob] to adjust the FM transmitter frequency to your car radio. Press the [CH/EQ] to fix.
- Please try a few channels and find the clearest frequency before fixing it.
- Press twice the [ CH/EQ] key to enter EQ mode.
- The display shows [ EQ0] for natural effects and [EQ1] for deep bass effects.

Type C & 2 USB Ports
The Bluetooth car adapter has 3 USB ports.
- 1* Type C port Output : PD 30W 5V/3A 9V/3A 12V/2.5A.
- 1* QC3.0 Charger port Output : 5V/3A 9V/2A 12V/1.5A.
- 1* Normal USB port USB flash drives.

What car does it suit?
- Perfect solution for older cars or those without an AUX port.
- The FM adapter can work with a car that has an FM radio and a cigarette socket.
- The interface length of the Bluetooth adapter is 1.7 inches.
- Please ensure that the length of your car's cigarette lighter is compatible before purchasing.
How to pair the car radio with this FM transmitter?
1 Plug the FM adapter
2 Search and choose a blank frequency on the radio
3 Press the[CH]key to enter frequency adjustment mode
4 Rotate the top button to adjust the adapter's frequency to the same as car radio
5 Press the[CH]key to fix this frequency
How to Pair cellphone and this transmitter?
1 Plug the FM transmitter.
2 Turn on the cell phone Bluetooth, search and choose “HY-66”.
3 After a successful pairing, the call hands-free function and the transfer audio function are active.
How to change FM frequencies if there are static/ interference issues?
1 Search and choose a blank frequency on the radio
2 Press the[CH]key to enter frequency adjustment mode
3 Rotate the top button to adjust the adapter's frequency to the same as car radio
4 Press the[CH]key to fix this frequency
How to set the optimal volume?
Recommended settings: Phone setting 75-80% volume, the fm transmitter setting 70-80% volume, the car setting 50-60% volume.
What car and phone is this Bluetooth adapter compatible with?
The LIHAN Bluetooth FM transmitters are compatible with virtually all cars that have a 12V cigarette lighter power outlet and an FM radio.
Works with Cars, Trucks, SUVs, motorcycles, RVs, and boats with standard 12V systems
LIHAN Products
![]() Car FM Transmitter | ![]() Bluetooth Car Adapter | ![]() Bluetooth Car FM Adapter | ![]() Cigarette Socket Splitter | ![]() CigaretteLighter Splitter | ![]() LIHAN Cigarette Lighter | ![]() Car Charger |
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