The Audio-Technica ATW-T1406 is a digital wireless boundary microphone/transmitter compatible with a System 20 PRO receiver (available separately). The unit delivers high-quality sound at 24-bit / 48 kHz resolution and features a low-profile form factor well suited to conferencing and educational applications. The built-in microphone uses an electret-condenser capsule that can handle SPLs up to 139 dB and features a cardioid polar pattern that focuses audio capture in front of the mic for less unwanted background sound. A customizable mute button lets you choose between toggle, touch-to-talk, and touch-to-mute modes, depending on your preferences, while an OLED screen on the bottom shows you channel, level, and battery information.
The System 20 PRO operates anywhere in the world in the 2.4 GHz spectrum, well away from potential TV and radio interference. The transmitter's RF output is fixed at 10mW and the unit offers a maximum transmission range of 200'. Three levels of diversity assurance—frequency, time, and space—ensure reliable audio transmission. A built-in lithium-ion battery powers the ATW-T1406 for up to 12 hours and is recharged in 3 hours and 10 minutes via the USB-C port; a USB charger and cable are supplied. The system can be expanded with additional transmitters and receivers to accommodate up to 20 mic channels simultaneously.