The ATW-T371b cardioid condenser wireless handheld transmitter features the Artist Series ATM710 cardioid capsule created for live sound venues. The element includes internal shock mounts for low handling noise. An internal capsule 6 dB pad provides additional attenuation for extremely high-SPL sound sources. An integral two-stage pop filter within the rugged steel headcase protects against “p” pops and other breath plosives. Transmitter setup functions are menu-driven via soft-touch controls. To prevent accidental changes, the controls are covered by the transmitter’s handle case when not being used.Operating using two standard AA batteries, the transmitter features high- and low-level RF output settings. The low-level setting allows two additional hours of battery life while retaining a strong RF signal link. Soft-touch controls provide convenient access to a variety of functions including RF power, audio input level, power/mute locks and frequency selection. Each transmitter’s LCD display presents a great deal of setup and operating information clearly and conveniently including battery fuel remaining, mute, and operating frequency. A flashing “Lo-Batt” alert visually signals the battery life almost depleted. Programmable power/mute locks limit the functioning of transmitter’s power/mute button as desired for particular users and applications. To match the audio input level to the transmitter, a three-position audio gain setting selected through the function menu is provided. The transmitter housing is made of metal with an integral antenna. Each handheld transmitter includes a heavy-duty Quiet-Flex™ stand clamp.