Packed with features and simple single button controls, the Chameleon Headset™ Odyssey VII will work with virtually any brand headset.Compare price and features such as:Universal compatibility with Chameleon, GN Netcom, or Plantronics H series headsets, simple one button selectors for Handset, Battery test, and Bass Boost, silent MUTE button, individual controls offer Independent adjustment of incoming volume and transmit sensitivity, Exclusive Audio Clarity Technology™ (ACT) with advanced compression, Convenient headset stand included and auxiliary recording jack, powered by 2 AA batteries (Included) or optional AC/DC adapter

The Chameleon Headset™ Odyssey II two prong ACD amplifier offers features no other brand offers. Compare price and features such as:Universal compatibility with Chameleon, GN Netcom, or Plantronics H series headsets, Transmit Sensitivity control, toggle Mute switch, built in Recording Jack, modular headset connection on either side of the amplifier.

Telephone Amplifier for Multiple Line Phone.8 Combinations for Compatibility of Almost Phone System in the World.Push Button Type for Mute Function.Slide Switch Type for On/Off Function.