The Sennheiser EW-D 835-S (S1-7) is a rugged digital wireless handheld system featuring the renowned e 835-S cardioid dynamic capsule with a noiseless mute switch. Designed for vocals and speech, it operates within the UK-friendly 606–662 MHz band, delivering crystal-clear sound, ultra-low latency, and dropout-free performance.Part of the Evolution Wireless Digital range, it combines the EM receiver with the SKM-S handheld transmitter, offering up to 12 hours of operation via lithium-ion battery or AA batteries. App-based control via the Smart Assist App makes setup effortless, even in complex RF environments.