【Sound Monitor】REVEX Voice Sensor X870 100m

Security alarm with voice sensor function and a communication range of up to 100m.

- Brand: REVEX
- Model: X870
- Function: Voice sensor
- Communication range: 100m
- Set contents: Transmitter, receiver

I forgot I had purchased this and stored it in a dark place for several years. It is unopened, so I have not tested its operation.
Please only purchase if you understand this.

Thank you for looking.