Ideal for boosting the listening volume of your existing telephone by up to 40dB with use of the boost button. It also has a tone control of +/- 6dB for improved clarity if required.
The product connects easily into the telephone handset cable and automatically switches on when the handset is lifted, and turns off when it is replaced in the cradle. The unit also has a headset, or neckloop, socket if you require this option. Requires 4 x AA batteries (Supplied). Telephone not included.