Digi-Wave 400 transceiver provides secure two-way wireless communication with simultaneous audio transmission and reception. Ideal for guided tours, interpretation, assistive listening and intercom applications.

The Digi-Wave 400 is a digital wireless transceiver utilizing Digital Spread Spectrum (DSS) technology in the 2.4 GHz frequency band, enabling simultaneous audio transmission and reception. Its frequency-hopping algorithm automatically changes operating frequencies to minimize interference and ensure secure wireless communication.

The system is ideal for guided tours, language interpretation, assistive listening, intercom communication, presentations, training sessions and other professional two-way communication applications. It is compatible with Digi-Wave 400 receivers and Digi-Wave 300 receivers (with limited functionality).

CODE: DLT 400

System Includes

• DLT 400 transceiver with built-in rechargeable battery
• DW ACC PAC4 charging pack

Features

A Digi-Wave system consists of at least one DLT 400 transceiver and any combination of additional DLT 400 transceivers and DLR 400 RCH or DLR 400 ALK receivers. Different combinations support a wide range of communication scenarios, depending on how many users need to speak and listen.

Typical applications include:

• Guided Tours – One or more tour guides, with or without audience participation (one-way or two-way communication)
• Language Interpretation – One or more interpreted languages transmitted to listeners
• Intercom – Up to six users can communicate simultaneously, with additional users listening
• Assistive Listening – Enhanced audio for improved speech intelligibility

Specifications

• Dimensions: 4.22″W × 2.60″H × 0.50″D (107.3 × 66 × 12.6 mm)
• Weight: 3.3 oz (94 g), including battery
• Color: Black/Silver (Front/Back)
• Case Material: Black ABS plastic
• Battery Type: Lithium Polymer battery with built-in smart charging; 1800 mAh
• Battery Life: Up to 16 hours of talk time per charge @ 1ch Tx and 1ch Rx
• Power Save: Auto Sleep Mode after 5 minutes with no RF signal from compatible devices (can be disabled in Advanced Settings)
• Charge Time: Approx. 5 hours
• System Voltages: OLED 14 VDC; RF 5 VDC; Logic 3.3 VDC
• Operating Frequencies: 2.4 GHz (ISM band); 2402–2476 MHz FHSS
• Audio Frequency Response (-3 dB):
  • Interpretation, Tour, Hearing Assist (≤4 microphones): 100–11,500 Hz
  • Other Modes: 100–7,200 Hz
• Signal-to-Noise Ratio (SNR): 73 dB (A-weighted, default Rx volume with microphone input)
• Total Harmonic Distortion (THD): 0.1% (Default Volume, 1 kHz)
• Microphone Input: Internal microphone (disabled when MIC jack is connected) and 3.5 mm microphone jack with electret microphone bias and adjustable gain (63 dB range)
• Line Input: USB-C, adjustable level
• Headphone Output: 3.5 mm TRRS headphone jack; 25 mW @ 32 Ω
• Audio Output:
  • Headphone: Max SSPL90 111.8 dB (EAR 013), 116.8 dB (EAR 041)
  • Line: USB-C, adjustable level
• Operating Range: Up to 900 ft (274 m), depending on environmental conditions
• Modulation: FSK
• RF Output Power: 19 dBm max
• Security: 87-bit encryption (300 Series compatible), 87+128-bit encryption, Encryption PIN, settings lock
• Side Tone: -6 dB below volume, adjustable (Off, Low, High)
• Display: OLED
• LED Indicators: Red LED around the Talk button when enabled; bi-color status LED (green/red)
• Charging Connectors: USB-C and dual charging contacts compatible with CHG 412
• Compatible Receivers: DLR 400 RCH, DLR 400 ALK, DLT 300 (limited functionality) and DLR 360 (limited functionality)
• Operating Temperature: 14°F to 113°F (-10°C to 45°C)
• Approvals: FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki
• Warranty: 2-year warranty against component failure and manufacturing defects; 1-year warranty on the internal battery. See the Full Warranty on the manufacturer's website for details.