Here is the user manual for the remote education collar, Aetertek AT-919-C

The complete kit includes:

Charge the receiver and remote control for 3 hours.

Then you have to synchronize the training collar with the controller.

To do this, stick the receiver on the remote control for 5 seconds.

The receiver collar rings, then press one of the 3 buttons (vibration, sound, shock) See a little further down in the guide, for the description of the buttons.

The collar rings again, it is now in sync.

Description of buttons:

To use the shock, press the 1st button.

For the audible warning, press the 2nd button.

For vibration, press the 3rd button.

To choose the dog, if you have 2 collars, press the 4th button.

The intensity of the shocks and sound is adjusted with the buttons on the side of the remote control.

To activate or deactivate anti-bark mode:

Press the button located on the back of the training remote control.

In the screen next to the small speaker

If anti-bark is activated, it indicates ON.

If anti-bark is deactivated it indicates OFF.

To turn on the light on the top of the remote control

Press the button on the back of the training remote control for 5 seconds, the light turns on.

To turn off the light, press the button on the back of the controller for 5 seconds.

Basic tips:

Place the collar on your dog's neck for a few days before starting training.

Do not wear the collar for more than 12 hours a day.