Sennheiser HDE-2020-D V2 B-Stock

Operating within the license-free ISM frequency band (863 - 865MHz), the Sennheiser HDE 2020-D-II is simple to set up and dependable for continuous use. Weighing just 75g (including the battery), it offers all-day comfort, even during long sessions. The receiver's six switchable channels provide flexibility for various group settings, from museum tours to assistive listening applications. For larger systems, up to 20 receivers can be conveniently stored and charged simultaneously in the dedicated Sennheiser EZL 2020-20L charging case, ensuring quick transitions between sessions. Power-saving features, including automatic shut-off when the receiver is removed or when the transmitter is inactive, extend battery life and enhance operational efficiency.

In June 1945, Prof. Fritz Sennheiser founded the Wennebostel Laboratory, which initially produced measuring equipment. Commissioned by Siemens in 1945, the young company developed the MD-1 microphone, which was launched in 1946. After the development of further microphones, the company was renamed Sennheiser Electronic in 1958. Two years later, Sennheiser introduced the MD 421 dynamic microphone, which is still in production today and still held in high esteem by many sound engineers. Further groundbreaking developments, such as the HD 414 headphones and the classic MD 441 microphone, hugely enhanced the company's international reputation, eventually making Sennheiser one of the leading manufacturers of microphone and headphone systems in the world.