Everyone can use it, but only change the config after an introduction!

The default ring-tone is Ding Dong, users can change it easily, please refer to the following steps.

1. Short Press the Backward or Forward Button on the receiver to select your favorite music. The receiver will ring the selected music.
2. Long Press the Volume Button on the receiver for about 8s, until it makes One Ding sound with LED light flashing one time
3. Quickly press the button on the transmitter within 8s, then the receiver will emit Two Ding sound with LED light flashing twice. the setting is completed. This learning mode lasts only 8s, then it will automatically exit.

Remark: This method is suitable for changing ringtone, adding new transmitters or receivers, and rematch.