The Logitech USB Corded Mono Headset H570e, delivers enterprise-quality audio at an affordable price for crystal-clear communication and longwearing comfort. Performance-focused features - including inline controls, incoming call indicator, DSP, dynamic EQ, acoustic echo cancellation, wideband audio, and a noise-canceling microphone - deliver business quality throughout. Plus, with an adjustable padded headband, and premium replaceable leatherette ear pads for added comfort, the H570e delivers a total feature set unmatched by competitive alternatives in the same price category.