Chelsea Online

First we made it lighter. At only 21 grams, the CS500 Series features the lightest DECT™ headset on the market (CS540). That means all-day comfort for all-star performance.Then we made it better. Increased range for maximum mobility, one-touch controls, energy efficient power management, simple plug-and-talk installation — the CS500 Series does it all.Make a good call with the new standard in wireless desk phone headset systems.