Williams Sound Digi-Wave INT 4 400 Series Rechargeable Interpretation System, Includes 3x DLT 400 Transceivers, 21x DLR 400 RCH Receivers & MIC 144 Headset Microphones

SKU: WSDI4400RCH MFR: DWS INT 4 400 RCH
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Key Features

  • Crystal-clear audio: Experience exceptional sound quality with this interpretation system.
  • Long-lasting battery: Enjoy up to 32 hours of use with the DLR 400 RCH receiver.
  • Secure communication: Benefit from 87-bit encryption for confidential discussions.
  • Intuitive interface: Easy-to-use design ensures a smooth audio experience for all users.
  • Versatile applications: Ideal for multilingual meetings, tours, and assistive listening.
  • Complete interpretation system: Includes transceivers, receivers, mics, and charging case.
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Williams Sound DWS INT 4 Specifications

DLT 400 Transceiver

DLT 400 Transceiver

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  • Color

    Black/Silver (Front/Back)

  • Case Material

    Black ABS plastic

  • Battery type

    Lithium Polymer with smart charge built into transceiver; 1800 mAH

  • Battery life

    Up to 16 hrs talk time per charge at 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.

  • Operating frequencies

    2.4GHz (ISM band); 2402 - 2476MHz FHSS

  • Audio Frequency Response (-3dB Level)

    Intercom Mode: 100 - 7,200Hz
    Other Modes: 100 - 11,500Hz

  • SNR

    73 dB (A-weighted, default Rx volume with mic input )

  • THD

    0.1 % (Default Volume, 1kHz)

  • Microphone input

    Internal microphone (disabled when MIC jack engaged) and 3.5mm phone jack (sleeve) with electret microphone bias, adjustable gain with 63dB range.

  • Line Input

    USB-C

  • Headphone Output

    3.5mm TRRS headphone jack; 25 mW, R 32 ohms

  • Audio Output

    Max SSPL 90 111.8dB (EAR 013), 116.8dB (EAR 041)

  • Range

    Up to 900' (274m) (depending upon environmental conditions)

  • Modulation

    FSK

  • RF Output

    19 dBm Typical

  • Security

    87 bit encryption (300 Series Compatible), 87+128 bit Encryption, Encrpytion PIN, Lock for settings

  • Side tone

    -6 dB below volume, tone variation (Off, Low and High settings available)

  • Indicators

    OLED

  • LEDs

    Red LED around Talk button when enabled; Bi-color, changing green and red LED at top

  • Charging Connectors

    USB-C; Two contacts for use with CHG 412

  • Compatible Receiver

    DLR 400 RCH, DLR 400 ALK, DLT 300 with some limitations and DLR 360 with some limitations

  • Operating Temperature Range

    14 Degree to 113 Degree F (-10 Degree to 45 Degree C)

  • Approvals

    FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki

  • Dimensions (W x H x D)

    4.22 x 2.6 x 0.50" (107.3 x 66 x 12.6mm)

  • Weight

    3.3 oz (94g) including battery

DLR 400 RCH Receiver

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  • Color

    Black

  • Battery type

    Lithium Polymer with smart charge built into receiver; 1800 mAH

  • Battery life

    Up to 32 hrs per charge at 1ch Rx

  • Power Save

    Auto Sleep Mode after 5 minutes of no RF signal from compatible devices

  • Charge time

    5 hrs. approx.

  • Operating frequencies

    2.4 GHz (ISM band); 2402 - 2476 MHz FHSS

  • Audio Frequency Response (-3dB Level)

    Intercom Mode: 100 - 7,200Hz
    Other Modes: 100 - 11,500Hz

  • SNR

    73 dB (A-weighted)

  • THD

    0.1 % (Default Volume, 1kHz)

  • Headphone Output

    3.5mm TRRS headphone jack; 25 mW, R32 Ohm

  • Range

    Up to 900 ft (274 m) (depending upon environmental conditions)

  • Modulation

    FSK

  • RF Sensitivity

    -92 dBm

  • Security

    87 bit encryption (300 Series Compatible), 87+128 bit Encryption, Encrpytion PIN, Lock for settings

  • Indicators

    OLED

  • LEDs

    Bi-color, changing green and red LED at top

  • Charging Connectors

    USB-C; Two contacts for use with CHG 412

  • Compatible Units

    DLT 400, DLT 300 with some limitations

  • Operating Temperature Range

    14 Degree to 113 Degree F (-10 Degree to 45 Degree C)

  • Approvals

    FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki

  • Dimensions (W x H x D)

    4.22 x 2.6 x 0.50" (107.3 x 66 x 12.6mm)

  • Weight

    3.3 oz (94g) including battery

EAR 022 Surround Earphones

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  • Style

    Around-ear speaker

  • Plug

    3.5mm mono

  • Cord

    39" (99.06cm)

  • Driver Size

    0.9" (23mm)

  • Nominal Impedance

    32 Ohm

  • Freq. Response

    20 - 20kHz

  • Max Power Input

    30 mW

  • Sensitivity

    118 dB at 1kHz

  • Weight

    0.52 oz (15g)

CCS 056 Carry Case

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  • Material

    Copolymer

  • Temperature

    Minimum: -40 Degree F (-40 Degree C)
    Maximum: 160 Degree F (71.1 Degree C)

  • Lid Inner Depth

    1.5" (4cm)

  • Bottom Inner Depth

    5.2" (13cm)

  • Dimensions (W x L x H)

    Interior: 13 x 18 x 6.7" (33 x 46 x 17cm)
    Exterior: 15.7 x 19.7 x 7.2" (40 x 50 x 18cm)

  • Weight (Empty)

    6.6 lb (3kg) (Approx)

About Williams Sound DWS INT 4

What sets the Digi-Wave INT 4 400 Series Rechargeable Interpretation System apart is its advanced digital spread-spectrum (DSS) technology, which ensures secure, interference-free communication. This innovative system is designed for seamless two-way wireless listening and speaking, making it an indispensable tool for a variety of auditory environments.

The core of the system includes three DLT 400 Transceivers, which are the linchpin for any Digi-Wave setup. These transceivers are capable of both transmitting and receiving high-quality audio, allowing for dynamic interaction between users. The DLT 400's frequency-hopping algorithm is a testament to its user-friendly design, providing a reliable connection that sidesteps potential interference with ease.

Accompanying the transceivers are twenty-one DLR 400 RCH Receivers, which are rechargeable and designed for crystal-clear audio reception. These receivers work in tandem with the transceivers to facilitate a range of events, from guided tours that encourage audience participation to language interpretation services and hearing assistance scenarios. The DLR 400 RCH's rechargeable feature underscores the system's commitment to durability and convenience.

Included in this comprehensive package are MIC 144 Headset Microphones, which are specifically engineered for compatibility with the DLT 400 transceivers. These headset microphones offer exceptional sound quality and are equipped with a TRRS 3.5mm plug, ensuring a secure connection for clear, uninterrupted communication.

For maintaining the system, the CHG 412 PRO Charging Bay in Case is a practical solution for powering up to twelve devices simultaneously. This 12-bay, drop-in charger is neatly housed within a protective case and comes with a power supply, ensuring your equipment is charged and ready for use whenever needed.

To further enhance the system's portability and durability, the CCS 061 Silicone Skins with Lanyard and Wrist Strap are included to protect the DLT 400 transceivers and DLR 400 RCH receivers. These silicone skins provide an additional layer of security against wear and tear, while the lanyard and wrist strap offer convenient carrying options.

Whether for guided tours, language interpretation, intercom needs, or hearing assistance, the Digi-Wave INT 4 400 Series Rechargeable Interpretation System is a high-quality, portable, and user-friendly solution that stands out in the professional audio equipment market. Its comprehensive design by Williams Sound, a leader in the industry, ensures that users receive a reliable and innovative auditory experience.

Williams Sound DWS INT 4 Features

  • DLT 400 Transceiver & DLR 400 RCH Receiver Features
  • Communicate as a group, or broadcast your audio one way. Use the system the way you need
  • DLR receiver supports unlimited listeners
  • Backwards compatibility with DigiWave 300 series
  • Crystal-clear digital sound quality
  • Completely Portable - No base station or rack-mounted components required
  • 128+87-bit encryption and PIN code
  • Simplified usage and set up
  • Increased range
  • Easy group join (for Guest units)
  • EAR 022 Surround Earphone Features
  • Hangs on outside of the ear
  • Excellent sound quality
  • 3.5mm mono plug
  • 1m cord
  • Monoaural
  • 32 ohm
  • Recommended for FM receivers and select IR receivers
  • Designed for individuals with mild and low gain hearing loss

Warranty Information

This product has a limited warranty of 24 months.

Product Documents

User Manual

Key Features

  • Crystal-clear audio: Experience exceptional sound quality with this interpretation system.
  • Long-lasting battery: Enjoy up to 32 hours of use with the DLR 400 RCH receiver.
  • Secure communication: Benefit from 87-bit encryption for confidential discussions.
  • Intuitive interface: Easy-to-use design ensures a smooth audio experience for all users.
  • Versatile applications: Ideal for multilingual meetings, tours, and assistive listening.
  • Complete interpretation system: Includes transceivers, receivers, mics, and charging case.

What's in the box:

  • 3x DLT 400 Transceivers
  • 21x DLR 400 RCH Receivers
  • 21x EAR 022 Surround Earphones
  • 3x MIC 144 Headset Microphones
  • 2x CHG 412 PRO 12-Bay Charger in Carry Case CCS 056
  • 2x Power Supply
  • 2x CCS 061 GR Silicone Skin with Lanyard & Wrist Strap (Gray)
  • CCS 061 BK Silicone Skin with Lanyard & Wrist Strap (Black)
  • Williams Sound 2 Year Limited Warranty (90 Day Limited Warranty on Accessories & 6 Month Limited Warranty on Internal Battery & Limited Lifetime Warranty on Carry Case)