Connect the alarm between the servo and the receiver, i.e. act as a servo extension cord. •Turn on your TX. and you will hear 2 x beep sound. •Do not move any of the control stick on the TX or simply turn off the the TX. You will hear a continuous beep sound after 1 minute. It will stop once u turn on your TX or move the control stick. •If you ignore the continuous beep sound for around 2minutes, the beep sound will change the a louder V sound. •You need to disconnect the alarm from the receiver in order to switch of the alarm.