Overview Over the head, binaural headset: flexible boom, omni-directional microphone, ActiveGard?« protection technology, black colour with grey light metal C-clamp. Features The SH 250 binaural headset is ideal when complete concentration at the workplace is required. Equipped with the renowned Sennheiser Communications premium quality, comfort and safety features, it offers exceptional value for money Patented ActiveGard?« technology to safeguard your hearing Acoustical foam ear cushions effectively channel sound into ears Headband adjustable on both sides for individually preferred positions Black with dark grey colored C-clamp Completely detachable headband for ease of use What's in the box? Headset with foam earpads Carry bag Quick & Safety Guide Microphone windscreen mounted Technical Data Wearing style Headband Color black Impedance 300 ?® Connector Easy Disconnect Frequency response (Microphone) 300 Hz - 3400 Hz Frequency response (Headphones) 300 Hz - 3400 Hz Microphone Omni-directional Sound pressure level (SPL) Max. 103 dB limited by ActiveGard?« THD, total harmonic distortion < 1% Cable length 1 m / 3.3ft Kevlar reinforced Earpad size Large ?© 46 mm / 1.8 inch