Williams AV DWS INT 3 400 ALK – Interpretation System for 2 Presenters, 20 Listeners

Product Overview

The Williams AV DWS INT 3 400 ALK is a portable language interpretation system for two presenters or interpreters and twenty listeners, built on the Digi-Wave 400 digital wireless platform. With alkaline-powered DLR 400 ALK receivers, rechargeable DLT 400 transceivers, and no base station to install, it gives courts, churches, and training facilities a self-contained simultaneous interpretation package that deploys in minutes and travels in a single carry case.

Product Description

This mid-size Digi-Wave 400 interpretation system pairs two DLT 400 digital transceivers — each with a MIC 144 headset microphone — with twenty lightweight DLR 400 ALK receivers and EAR 022 surround earphones. Interpreters transmit on dedicated channels while listeners dial in their language on the receiver's LCD; the platform supports one floor language and up to 14 translated languages, so additional transceivers can be added as language requirements expand beyond the two channels supplied.

The DLR 400 ALK receivers run up to 30 hours on two standard AAA alkaline batteries (twenty BAT 010-2 cells are included), which keeps the listener fleet operational without charging infrastructure — a practical benefit for facilities that share equipment across buildings or rent it out. The two transceivers recharge in the included CHG 404 four-slot charging bay, and the complete kit packs into the CCS 042 system carry case.

Transmission uses frequency-hopping digital spread-spectrum in the license-free 2.4 GHz ISM band, resisting interference from Wi-Fi and other wireless systems in commercial meeting spaces while offering optional 87+128-bit encryption for confidential proceedings. The same hardware also runs two-way intercom and one-way guided-tour modes. For larger audiences and more languages, see the DWS INT 5 400 ALK 50-receiver system or the full Williams AV collection.

System Includes

• (2) DLT 400 transceivers
• (20) DLR 400 ALK receivers
• (2) MIC 144 headset microphones
• (20) EAR 022 surround earphones
• (1) CHG 404 DW 4-slot charging bay
• (20) BAT 010-2 AAA alkaline batteries
• (1) CCS 042 DW system carry case
• (1) CCS 061 BK black silicone skin
• (1) CCS 061 GR grey silicone skin

Key Features

• Two Interpreter Channels Plus Floor — Two DLT 400 transceivers cover bilingual interpretation immediately, with platform capacity for up to 14 translated languages as needs grow.
• 20 Ready-to-Hand-Out Receivers — AAA-powered DLR 400 ALK receivers with surround earphones distribute quickly and run up to 30 hours per battery set.
• No Charging Infrastructure for Listeners — Standard alkaline batteries swap in seconds, keeping the audience fleet in service across multi-day events without dock space.
• License-Free 2.4 GHz Operation — Frequency-hopping spread-spectrum requires no FCC license and coexists with venue Wi-Fi in conference rooms and government spaces.
• Optional Encryption — 87+128-bit encryption with PIN and settings lock secures courtroom testimony and closed-session interpretation.
• Single-Case Portability — The entire system, including the CHG 404 charger, travels in the CCS 042 carry case for one-trip deployment between rooms or sites.
• 900 ft Coverage — Operating range up to 900 feet (274 m) handles sanctuaries, training floors, and overflow spaces from a single transceiver position.
• Multi-Mode Hardware — The same kit serves interpretation, full-duplex intercom, and guided-tour listening, improving utilization between events.

Typical Applications

• Conference room
• Training room
• House of worship
• Government space
• Commercial meeting space
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

Is this system the right size for a church or courtroom?

Yes — two interpreter channels and twenty receivers cover most single-room bilingual or trilingual scenarios. If your audience or language count grows, add receivers (unlimited) and transceivers (up to 14 language channels) without replacing the core system.

How quickly can a non-technical staff member set it up?

Within minutes. There is no base station, antenna, or wiring: power on the transceivers, hand out receivers set to the correct channel, and the system is live.

Do the receivers work with hearing aids?

The DLR 400 ALK's 3.5 mm output drives earphones, headphones, or a neckloop for telecoil-equipped hearing aids, supporting listeners who need assistive listening alongside interpretation.

Will the 2.4 GHz signal conflict with our wireless microphones or Wi-Fi?

The frequency-hopping spread-spectrum design moves across 2402–2476 MHz to avoid interference, so it coexists with Wi-Fi networks and UHF wireless microphone systems commonly found in commercial AV installations.

Can I mix this with older Digi-Wave 300 equipment we own?

DLR 400 ALK receivers are compatible with DLT 300 transmitters, and the DLT 400 supports 87-bit encryption for 300 Series interoperability with some feature limitations — useful during a phased fleet upgrade.

What warranty covers the system?

Williams AV provides a 2-year warranty against component failure and manufacturing defects. Creation Networks supports specification, accessories, and after-sale service.