Model 100 voice recording interfaceMODEL- MODEL100 VENDOR- KONEXX FEATURES- Model 100 Voice Recording Interface When accuracy and record keeping are essential, the Model 100 allows conversations on virtually any analog or digital modular phone system to be recorded. This handset-interface product will connect a cassette recorder, or even the sound card in your computer, to most telephones and ensures that all sides of a conversation are recorded at equal levels. Enables your cassette recorder to interface with any modular phone system. Compatible with most sound cards. All sides of the conversation are recorded at equal volume levels. Does not require power source. CONNECTORs- RJ-11 at Konexx end. 3.5 mm mono plug at Recorder. CABLE - 32" in length POWER- No power required. SIZE - 3.7" x 1.1" x 1.4" WT.- 1.9 ounces support@konexx.com MFR. WARRANTY- 2 Years D&H RA POLICY-45 Day Exchange MFR.TECH SUP#-858-622-1400 MANUFACTURER WARRANTY:2 YEARS