Sennheiser DW Pro 2 Dual Ear Wireless Office Headset with Microphone -DECT 6.0 Binaural wearing style covers both ears for increased stability and focus. Adjustable noise-canceling microphone filters out most unwanted background noise making your calls clearer and more professional Best-in-class range of up to 400 feet - walk and talk up to 400 feet from your phone Intelligent Fast Charge means you'll get up to 12 hours of talk time in a one hour charge! Ultra-Comfortable - with a wearing style that covers both ears with soft leatherette ear cushions, the fit is more like a comfy pair of headphones than a headset Adjustable noise-canceling microphone filters out most unwanted background noise making your calls clearer and more professional. Protect your hearing with ActiveGard technology