Sennheiser has teamed up with sportswear company Adidia to create their new joint-braned headphones, including CX 680i Sports, MX 680i Sports, OMX 680i Sports and PMX 680i Sports, all specially developed and designed for use with the iPhone. All of them are sweat- and water-resistant, making them ideal for sports; and have integrated multifunctional EAC Remote Control and microphone for use with Apple’s iDevices.
The in-ear CX 680i Sports features ear-canal drivers and EarFin holding system that offers secure and comfort fit during workouts. It is acoustically closed to block outside noise effectively hence more recommended for indoor use.
Sennheiser Adidas MX 680i Sports is acoustically more open that it blocks less outside noise and lets you be more aware of your surroundings. It has 0.6 meter symmetric short cable for ease of use while running or working out, and comes with a 0.6 m extension cable with integrated EAC Remote control.
The OMX 680i Sports gets fully adjustable ear-clips while the the PMX 680i Sports has a rugged ergonomic neckband, for secure and comfort fit during workouts. Both of them are acoustically more open and have high-output drivers.
All these Sennheiser Adidas iPhone headsets come with Dupont Kevlar reinforced cable. All of them are available at Amazon or Apple Online Store.