Viking professional telecom recorder kit Designed to record both sides of the conversation on a phone line using a standard digital or tape style recorder Kit contains an interface module, a seven foot recorder cable with 1/8 plugs, a handset T adapter, and a modular telephone cord all the components you need to record telephone conversations Applications legal communications, avoid misunderstandings and disputes, review conversations, medical advice and instructions, conversations involving insurance, technical, scientific, or government matters, etc. No power required for recorder interface module Works with virtually any tape or digital recorder with VOX and AGC circuits Recorder only runs during conversation Record all conversations on a phone line, only on your phone or only those you wish to record Compact unit is easy to use Both sides of the conversation record at about the same level Connections 2 RJ 11 jacks, 1 3.5mm 1/8 audio jack