Audio Technica ATW-3131B Wireless Lavalier System


3000 Series Frequency-agile True Diversity UHF Wireless Lavalier System

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SKU: AUDTATW3131B Categories: , Brand:

ATW-R3100b receiver and ATW-T310b UniPak® transmitter with AT831cW lavalier microphone.

Audio-Technica’s third-generation 3000 Series wireless systems offer up to 1001 selectable UHF frequencies and new features for clear sound & intuitive operation. We’ve simplified selection of usable frequencies, increased system reliability, and illuminated transmitter screens for clear reads on dark stages. It all adds up to the luxury of rock-solid, richly detailed high-fidelity sound.

The versatile ATW-T310b UniPak® body-pack transmitter features a secure 4-pin locking connector compatible with a wide range of microphones, as well as a guitar cable. A 3-position sliding cover on the transmitter’s control panel prevents accidental shut-off or channel-switching. A new locking battery compartment provides a more secure latch and more robust design.

The 3000 Series is available with either a dynamic or condenser handheld transmitter featuring rugged metal construction and slim ergonomic design. The ATW-T341b handheld transmitter includes the stage-proven Artist Elite® AE4100 cardioid dynamic element, and the ATW-T371b handheld transmitter features the studio-quality Artist Series ATM710 cardioid condenser element.

996 – 1001 UHF frequencies in one of three UHF frequency ranges

Available in three frequency bands:

  • 541.500 MHZ to 566.375 MHz (TV Channels 25 – 30)
  • 655.500 MHz to 680.375 MHz (TV Channels 44 – 49)
  • 482.000 MHz to 507.000 MHz (TV Channels 16 -20)

Additional Features

  • Antenna power available for powered antennas & other in-line RF devices
  • Nine pre-coordinated frequency scan groups simplify selection of usable frequencies in a multi-channel wireless system
  • True Diversity operation reduces dropouts
  • Advanced digital Tone Lock™ squelch effectively blocks stray RF and communicates transmitter data for receiver display
  • Transmitters offer backlit LCD & dual-color LED
  • Locking battery compartment with secure latch and robust design
  • Ground-lift switch helps eliminate audible hum caused by ground loops
  • Balanced and unbalanced audio output jacks
  • ATW-T310b UniPak® transmitter includes Super Hi-Z input that provides optimum load for guitar pickups
  • ATW-T341b handheld microphone/transmitter features the Artist Elite® AE4100 cardioid dynamic element
  • ATW-T371b handheld microphone/transmitter features the Artist Series ATM710 cardioid condenser element

Additional information

Dimensions 6 in
Overall Frequency Response

70 Hz – 15 KHz

Approx. Working Range (Distance)

300 ft.

Model Number


Frequency Range

541.5 – 566.375 MHz

THD & Noise

<1% at 1KHz / Typ 105bB (A)

Transmitter Type

Body Pack

Number of Channels


Type of Receiver

Diversity .5RU Table Top

Type of Output

XLR & TS 1/4"

Battery Type/Life




Microphone Type


Mute Switch



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