The Vista 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. 

Features

• Wideband audio. When used as a part of a wideband VoIP system, the Vista M22 delivers enhanced audio and more natural speech - reducing repeats, errors, and listener fatigue 
• Loud noise protection reduces the level of incoming loud noises (i.e. fax tones) to a more comfortable listening level 
• Enhanced echo management helps to reduce echo often associated with VoIP telephony 
• Call volume equalizer maintains user-selectable listening preferences regardless of the quality of the incoming call 

Specs

• 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)
• Two-year manufacturers warranty