The 50-person Digi-Wave 400 interpretation system with alkaline receivers is designed for large multilingual events requiring flexible, high-quality audio. It supports up to five presenters and 50 listeners, facilitating four languages plus a floor channel.
Each receiver operates on replaceable AAA batteries for quick swaps during long sessions, making it the perfect portable interpretation system for conferences, training, and tour applications.
$19,980.00
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The 50-person portable Digi-Wave 400 interpretation system offers secure, interference-free audio across multiple languages.
This configuration includes five DLT 400 transceivers and fifty DLR 400 ALK receivers powered by AAA alkaline batteries for extended use and easy replacement. Each interpreter uses a MIC 158 headset microphone for precise, clear speech, while EAR 022 earphones deliver immersive sound to listeners.
Designed for large venues, it combines crystal-clear digital audio, lightweight portability, and robust 2.4 GHz FHSS technology for professional-grade multilingual communication.
The Digi-Wave 400 interpretation system with alkaline receivers combines flexibility, portability, and professional sound performance. It operates without base stations or complex wiring, ideal for quick setup in multilingual conferences, tours, or training environments.
Included in this system:
Performance highlights:
Perfect for government meetings, worship services, or global business events, this system ensures every listener receives clear, uninterrupted interpretation.
Alkaline, 1.5 Volt
| Dimensions: | 26.2″ L x 19.7″ W x 13.2″ H |
| Weight: | 23 lbs. |
| Note: | The CCS 054 replaces the CCS 049. |
| Dimensions: | 9″L x 7″W x 1.5″H (23 cm L x 17.8 cm W x 3.8 cm H) |
| Weight: | 1.8 lbs (845 g) |
| Enclosure: | Black, ABS plastic with metal base |
| Power Supply Input: | TFP 066, 90-240 VAC input, 1.5 A max * |
| Power Supply: | Universal DC adapter, 5 VDC – 6A output, center positive |
| Output Rating: | 5 VDC, 0.5 A per bay (12 charging bays) |
| Charging Time: | ~5 hours |
| Unit Capacity: | 12 Units |
| Compatible Units: | Transceiver: DLT 400 Receiver: DLR 400 RCH |
| Indicators: | Charge status indicators on DLT or DLR |
| Approvals: | CE, FCC, WEEE, RoHS, CB |
| Warranty: | 2-year (cables and power supply warranty for 90 days) |
* Eight separate CHG 412s (each powered by their own TFP 066 power supply) can be connected to a 15-amp circuit.
| Dimensions: | 2.36″ W x 3.54″ H x 0.63″ D (60 mm x 90 mm x 16 mm) |
| Weight: | 1.7 oz. (47 g) without batteries. |
| Frequency Band: | 2.4 GHz (ISM band) |
| Modulation: | FSK |
| Case Material: | Black ABS Plastic |
| Battery Type: | 2 x AAA Alkaline Batteries |
| Battery Life: | Alkaline Disposable (BAT 010-2): Up to 30 hrs |
| Power Save: | Auto Sleep Mode after 5 minutes of no RF signal from compatible devices |
| Audio Frequency Response: (-3dB level) | Intercom Mode: 100 – 7,300 Hz Interpretation and other modes: 100-11,200 Hz |
| SNR: | 74 dB (A-weighted) |
| THD: | 0.1% (typical) |
| Antenna: | Internal |
| Range: | Up to 900 ft (274 m) (depending upon environmental conditions) |
| Headphone Audio Output: | 3.5 mm TRRS jack with mono output for headphones, earphones, or neckloop 27 mW maximum @32 ohms |
| Display: | LCD shows status: Battery Level, RSSI, Group/Channel # |
| Temp. Range: | 14° – 113°F (-10° to 45°C) |
| Compatible Units | DLT 400, DLT 300 |
| Approvals: | FCC, Industry Canada, RoHS 3, CE, WEEE, RCM, ANATEL, KC, Giteki |
| Warranty: | 2-year warranty against component failure and manufacturing defects. See Full Warranty on the website for details |
NOTE: DLR 400 ALK units are not compatible with the special AIM features.
| Dimensions | 4.22″W x 2.60″H x 0.50″D (107.3 mm x 66 mm x 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 with smart charge built into transceiver; 1800 mAH |
| 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) |
| Microphone input | Internal microphone (disabled when MIC jack engaged) and 3.5 mm phone jack (sleeve) with electret microphone bias, adjustable gain with 63dB range. |
| Line Input | USB-C, Adjustable level |
| Headphone Output | 3.5 mm TRRS headphone jack; 25 mW, R 32 ohms |
| Audio Output | Headphone: Max SSPL 90 111.8dB (EAR 013), 116.8dB (EAR 041) Line: USB-C, Adjustable level |
| Range | Up to 900 ft (274 m) (depending upon environmental conditions) |
| Modulation | FSK |
| RF Output | 19 dBm Typical |
| Security | 87-bit encryption (300 Series Compatible), 87+128 bit Encryption, Encryption 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 | 14º to 113ºF (-10º to 45ºC) |
| Approvals | FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki |
| Warranty | 2-years warranty against component failure and manufacturing defects. 1 year on the internal battery. See Full Warranty on the website for details. |
| Style | Around-ear speaker |
| Plug | 3.5mm mono |
| Cord | 39″ |
| Driver Size | 23 mm |
| Nominal Impedance | 32Ω |
| Freq. Response | 20 – 20kHz |
| Weight | 15g |
| Max Power Input | 30 mW |
| Sensitivity | 118 dB @ 1kHz |
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The alkaline version (DLR 400 ALK) uses replaceable AAA batteries for longer runtime flexibility and easy replacement during extended events. The rechargeable DLR 400 RCH version uses lithium-polymer batteries that charge via USB-C, making it ideal for daily use where regular recharging is convenient.
The Digi-Wave 400 interpretation system supports up to four interpreted languages plus one floor channel. This configuration allows five presenters to speak simultaneously and up to fifty listeners to receive translations across secure wireless channels in real time.
Each DLR 400 ALK receiver runs for up to 30 hours on two standard AAA alkaline batteries, offering outstanding reliability for multi-day events without needing to recharge.
The system uses 2.4 GHz FHSS (frequency-hopping spread spectrum) digital transmission to prevent interference and ensure stable audio in crowded environments. Dual-layer 128 + 87-bit encryption keeps communication private, while the portable, base-free design delivers studio-quality sound in any conference or training room.
Yes. With a range of up to 900 feet (274 meters), Digi-Wave 400 maintains clear, reliable sound even in outdoor venues. Its robust signal stability and weather-resistant build make it suitable for guided tours, ceremonies, or open-air corporate events.
Yes. The DLR 400 ALK and DLR 400 RCH receivers are fully compatible with all DLT 400 transceivers, allowing you to mix battery-powered and rechargeable models in the same system. This flexibility helps organizations adapt to different event types and runtime needs.
These systems are widely used for international conferences, government hearings, courtrooms, educational programs, and multilingual worship services. Businesses also rely on them for employee training, factory tours, and corporate presentations where clear cross-language communication is essential.
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