The Williams Sound Digi-Wave DLT 400 features full-duplex capability, supporting up to four simultaneous talkers in tour guide mode, and up to six simultaneous talkers in intercom mode. One or two-way operation offers flexibility in an array of applications. With the push of a button, users can access two-way communication for immediate interaction or Q&A.
The Digi-Wave system is ideal for guided tours. The tour guide can address the tour group whilst walking around. The tour guide can allow guests to talk back when required. Another common application is for staff meetings on the move.
The Digi-Wave system enables up to six people to talk in open ‘full-duplex’ communication, as if on the same telephone call. With a wide range of headsets available, the Digi-Wave tour guide system is suitable for any environment from a quiet tour around a historic site to a noisy manufacturing site where hearing protection is required.
The DLT 400 is backward compatible with the previous generation DLT 300 transceiver and DLR 360 receiver (with some limitations).
Slim, lightweight, and simple to set up and use
Up to six simultaneous talkers in two-way mode
Up to 30m indoors/20m outdoors
Simplified menu system via large OLED screen
2.4 GHz licence-free operation
87-bit encryption and frequency-hopping technology
Programable mic button
Single four pole jack socket
USB-C charging port
Up to 15 channels can operate together in one-way mode
Up to 4 separate groups can operate together
1 Digi-Wave DLT 400 Transceiver
1 DW ACC PAC4 Charger
Dimensions 107.3 mm x 66 mm x 12.6 mm
Weight 94 g including battery
Colour 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.
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
Headphone Output 3.5 mm 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 ft (274 m) (depending upon environmental conditions)
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)
LEDs Red LED around Talk button when enabled; Bi-colour, 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,
Warranty 2 years parts and labour (90 days on accessories); 6 months on internal battery
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