The Encore Binaural headset (top only) also lets users change the tone of their callers voice. But by providing sound in both ears, it gives even greater clarity. It is ideal for anyone working in a noisy environment who really needs to concentrate on calls. * Lightweight headset (74 gms) * Lightweight cable (13 gms) * Provides sound in both ears * Sound Enhancement System * Over-the-head design * Quick disconnect clip * Caller placed on hold while cable disconnected * Replaceable ear cushion * Replaceable voice tube Comfortable for all day use * Fully adjustable headband * 2 year warranty