The Radius earbuds are made from ultra-light aluminum, which makes them durable. The cords are thick rubberized plastic that protect the wires when tugged or pulled.
Radius earbuds can adapt to any ear size, and have tiny silicon caps for a secure fit without sound leakage. All Radius earphones use a 9mm neodymium magnet
There are three series currently available: Tru-Tune, Atomic Bass, and Atomic Strap.
The Radus Tru-Tune start at $29.99.
See all available Radius earbuds on Amazon.com. See also the Radius site.