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Williams Sound DLT 400
Digi-Wave Digital Transceiver - Hearing Assistance

Part #: DLT 400
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MSRP: $590.00
Our Price: $530.00
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Top DLT 400 Specifications
  • Color: Black/Silver (Front/Back)
  • Case Material Black ABS plastic
  • Battery type: Lithium Polymer with smart charge built into transceiver
  • 1800 mAH
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The Williams AV DLT 400 The Digi-Wave system is a digital spread-spectrum (DSS), simultaneous two-way wireless listening system. Using it’s frequency-hopping algorithm, it avoids interference and is a very secure method of communication. The Digi-Wave communication system allows users to listen and talk to one another wirelessly in a variety of scenarios.

A Digi-Wave system consists of at least one transceiver (DLT 400) and various combinations of transceivers and receivers (DLR 400 RCH or DLR 400 ALK). Combinations of one or more DLT’s and DLR’s can be used to facilitate different events, depending on what needs to be spoken and what needs to be heard. Typical scenarios include:

  • Guided Tours – with one or more tour guides (2-way), with audience participation (2-way), or without audience participation (1-way)
  • Language Interpretation – one or more interpreted languages transmitted to audience (1-way)
  • Intercom – with up to six people able to speak simultaneously, and even more listening
  • Hearing Assistance – featuring boosted audio for improved comprehension


  • Battery life: Up to 16 hrs talk time per charge@ 1ch Tx and 1ch Rx
  • Power Save: Auto Sleep Mode after 5 minutes of no RF signal from compatible devices
  • Charge time: 5 hrs. approx.
  • System Voltages: OLED 14VDC
  • RF 5VDC
  • Logic 3.3 VDC
  • Operating frequencies: 2.4 GHz (ISM band)
  • 2402 2476 MHz FHSS
  • Audio Frequency response
  • (-3dB Level): Intercom Mode: 100 7,200 Hz
  • Other Modes: 100 11,500 Hz
  • SNR: 73 dB (A-weighted, default Rx volume with mic input )
  • THD 0.1 %: (Default Volume, 1kHz)

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