The MicTel replaces the handset of the telephone to provide high-quality audio for feeding and receiving information. For non-telephone work, its balanced, studio quality inputs and outputs make it an excellent audio interface device for all kinds of remote or in-studio work. The aux. audio channel drives the headphones giving you a portable field amplifier with an IFB feed for your headphones in one compact box.The MicTel includes a line-level, balanced input for mixing in tape players, etc. Along with high quality audio, the MicTel features audio limiters in both the send and receive channel. These limiters are user-defeatable and begin working at about +3dBm of output. The limiter works by automatically reducing the gain of the device during high-output, peak audio thereby preventing clipping, output distortion or overdriving the telephone line.The MicTel is a great addition to your remote setup. Whether you’re doing news/sports actualities, general remote broadcasting, or you just need a great little mini-audio work station for your studio, you’ll appreciate the versatile features & performance of the MicTel. Outputs for telephone handset, cellular phone or balanced line level at up to +10dBm. Audio inputs from phone handset, cell phone or balanced line. Program bus is fed by balanced mic preamp and an auxiliary balanced line input. Individual gain controls for send, receive and headphones levels. High quality, user-switchable, internal limiter prevents clipping. Has both 1/4″ and 3.5mm stereo headphone/cue jacks. Headphone amp has a variable level balanced input and adjustable sidetone so you can monitor an IFB or cue return source AND/OR your program audio. Rugged design & Long life potentiometers for extra years of trouble-free broadcasts. Industry standard XLR mic and program output connectors. External power input with silent, auto-switching battery backup & low battery indicator Uses two 9V batteries or the included CircuitWerkes adaptor.