Alerts (64 sounds) with abundant ringing sounds and voices. Transmitter and receiver can be extended. It can be used in conjunction with the old model, but in that case, the distance and sound type will work with the previous model specifications. In that case, a relay cannot be used. If you need a relayer, please use the same series of transmitter and receiver. Caution: Please read the precautions before use.
Please read the precautions before use