Product description
UNIVERSAL NEW STYLE OF NHAY 3 PRO MUSIC RAPID RELAY 12V-24V FOR CAR MOTOR 8 TUNES RELAY MUSIC BOX
Power Supply: Ensure that the device is connected to a power supply within the specified voltage range (12V-24V) for proper operation in a car.
Installation: Typically, these devices are connected to the car's electrical system. Follow the manufacturer's instructions for proper installation. This may involve connecting to the car's battery or other power sources.
Relay Function: It seems to have a relay function, possibly related to controlling the music playback. Check if there are any additional features or settings related to the relay function, and make sure it is configured correctly.
Music Selection: If it has 8 tunes, there should be a way to select or cycle through the different tunes. This could be done through buttons on the device or a remote control.