 |
Login or Create an Account Items In Cart: 0 | Total: £0.00 |
|
Listening Device When more than one listening device is used, a surveillance receiver with multiple channels is required. Covert listening devices may operate simultaneously. A covert listening device that operates on a fixed frequency should not interfere with any other listening device, unless they are within extremely close proximity to one another. That said, most electronic listening devices are able to transmit on frequencies with little to no interference. |
