Plantronics M10 Universal Amplifier:

Plantronics M10 Universal Line Powered Amplifier that connects H Series headsets to phones. Plantronics M10 supports carbon handsets, standard electronic handsets including Electret, Dynamic and ceramic.

Specifications

Plantronics M10 Features:

• Supports H-Series headset tops
• Uses 2 AA batteries or optional AC adaptor
• Complies with part 68 FCC rules
• Compatible with most modular phones
• Installs in handset jack
• Handset/Headset switch
• Includes Tx mute, Tx volume adjust, and Rx volume adjust
• 6 position configuration switch
• Part Number: M10 - Discontinued
• Current replacement – M22