The Beyerdynamic SEM 681 UHF Handheld Transmitter is intended for use with
Opus 600 wireless microphone receivers. The SEM 681 features the removable EM
981 S microphone head, with an electret condenser capsule built in. The capsule
and cardioid polar pattern make the SEM 681 a well suited choice for general
speech capturing during presentations, conference, sermons and more. The capsule
is internally shock-mounted to reduce handling noise, and its cardioid polar
pattern yields an even frequency response.
Silver grill
Electret condenser microphone capsule
Cardioid
Built-in metal gaze pop shield without any foam material
High SPL capability
Switchable low-cut filter to compensate the close-miking effect
Operating time > 20 hours with 2 x 1.5V AA batteries