Usage of roof advertising horn

The use of the roof advertising horn is as follows:

1, turn on the switch first. Generally speaking, if there is electricity, there will be a prompt when the switch is turned on. If there is no response, it may need to be recharged;

2. Plug the smaller trapezoidal connector into the stereo, and plug the USB connector at the other end into the computer to charge. If there is a power adapter, it can be plugged into the socket to charge, and the light will flash when charging;

3. It can be used normally after charging. Experience the Bluetooth function first, and pair it with your mobile phone. First, press and hold the play button on the stereo and switch to Bluetooth mode according to the voice prompt.