Fastmac has introduced a new line of universal headphone adapters for Apple iPhone that allow any headphones or earphones with a standard 3.5mm plug to work with the recessed headphone jack of the iPhone.

The Fastmac universal headphone adapter is available in 3 models, starting with a basic in-line audio adapter with flexible cable & gold plated connector port priced at $4.95. The mid-level model, priced at $9.95, features the same in-line audio adapter with flexible cable & gold plated connector port, but adds a shirt clip, built-in microphone and a music playback / phone control button that allows users to answer and end phone calls and pause, play, and skip music. Fastmac's 3-in-1 Premium Headphone Adapter, priced at $19.95, incorporates all of the features of the mid-level model along with an adjustable volume slider and noise suppression microphone.

All three adapters carry a 1-year warranty and are available now from Fastmac's website.