Plantronics encore binaural noise cancelling headset with u10p cable has two earpieces for total call concentration by providing sound in both ears it gives greater clarity and is ideal for anyone working in a noisy environment that needs to concentrate on calls with a fully adjustable headband and earpieces for an extremely comfortable fit it39s ideal for all day use the encore binaural headset features a unique sound enhancement system that allows the user to adjust the caller39s ton