If you want to have control over the discussions carried out by your landline phone, you want to know what and how your employees talking with customers, you want to know who your children are in contact over the phone, this device is for you. It allows the telephone line telephone service. Eavesdropping is a very small and inconspicuous device that can easily be installed on a phone line.

1. High db transmitted

2. No needs additional power

3. Up to 200m transmitted range (You need to have RF reciever)

4. Easy to install

Specification: