Countryman B3 Omnidirectional Lavalier For Sennheiser | 3.5mm locking (SR) | Mid Gain | Light Beige

The Countryman B3 is a professional omnidirectional lavalier built for sound engineers, production mixers, and theatre sound designers who need consistent, high-quality wireless audio across a wide range of applications. Whether deployed as a tie-clip mic for interviews, a concealed hair mic for theatrical productions, or a water-resistant mic for reality TV and outdoor broadcast, the B3 delivers the kind of clean, low-noise audio that holds up in demanding professional environments. The ultra-thin diaphragm and aramid-reinforced cable set a measurably low handling noise floor, which matters when talent is moving, and the protective caps resist water, sweat, and makeup without degrading the capsule.

What separates the B3 from competing lavaliers at this price tier is the combination of field reconfigurability and broad transmitter compatibility. Swappable protective caps let engineers tune the high-frequency response on location to match program content or blend with other microphones in a multi-mic setup. Detachable connectors allow the same mic to pair with a wide range of Sennheiser bodypack transmitters, making it a practical long-term investment for rental houses, production companies, and installed theatre systems that run mixed wireless ecosystems. The family is offered in multiple connector types, gain levels, and body colors so engineers can match transmitter, application, and talent appearance in a single order.

With up to 150 dB SPL capability on phantom power and support for wireless operation from 3V to 12V, the B3 handles everything from soft-spoken corporate presenters to loud theatrical performers without riding the gain. Its small footprint simplifies placement decisions for ambient noise rejection and feedback control, reducing setup time in live environments where every minute of soundcheck matters.