Brand NEW! Including 90 Days USA Factory Warranty. 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 - All international buyers are responsible for all tax, duties and/or customs fees.