Sennheiser HSP 2 scw but also usable as a

but also usable as a sound source

The core is a 12dB multimode filter identical to the modules  A-121-2 and A-121-3

Bass-reflex

stereo RCA

Rotate shifts multiply-by amount

Sennheiser HSP 2 scw but also usable as aHigh quality condenser omni directional neckband mic for vocal and speech applications. Individually adjustable. Patented sweat protected diaphragm. Easily interchangeable and combinable components thanks to modular design. Headworn microphone featuring very lightweight design and superlative audio quality. Permanently polarized MKE platinum condenser capsule with omni directional polar pattern designed for professional "hands free" applications. The