The Shure Push-To-Hear (PTH) is an accessory that connects between your headphones and your music player that allows you to hear external sounds at the push of a button without removing your headphones. The PTH has a built-in Voiceport microphone with a clothing clip that cleanly picks up the sounds around you so you can converse without the hassle of constantly removing and replacing your headphones.
The PTH uses gold-plated 1/8" mini connectors for a clear audio signal, and has a four-foot cable (two feet on either side of the PTH module). The unit operates on a single "AAA" battery, which is included. For ease of use and clarity of audio, the PTH can't be beat.