The Plantronics M22 amplifier provides superior sound quality and acoustic protection to your telephone. Best of all, this amplifier is designed to adapt to almost all single and multi-line telephones. With high quality sound, this amplifier allows for lower listening errors, repeats and listener fatigue.
- Adjustable incoming volume control up to 18dB
- Adjustable outgoing volume control up to 12dB
- Reduces echoes for more natural conversations
- Quick disconnect allows you to easily disconnect from your headset
- Coiled cable extends to provide 8-10 feet of reach
- Battery operated (2 AA batteries included)
- One-year manufacturer's warranty
