ENVOY ISDN Codec, Compex Sennheiser HMD25- Start Price USD 500.00 Current Price USD 1,475.00 Time Left - Bid Count 5 Buy It Now Price - Reserve Price - Start Time Tuesday, November 18, 2008 End Time Sunday, November 23, 2008 Location San Diego, CA See more about 'ENVOY ISDN Codec, Compex Sennheiser HMD25-' Description Professional Radio Broadcasting Equipment, pre-owned only used twice in next to new condition with three Sennheiser HMD 25-XQ Headphones. The ENVOY ISDN Codec has built-in Terminal Adapter and NT1, Bidirectional 7.5 kHz audio at 56/64 kb/s, Bidirectional 15 kHz audio at 112/128 kb/s, Ancillary data capability, 4 mic inputs (2 mic/line switchable) with 3 headphone outputs and headphones.   Place a Bid!