Model:
DLT 400
SKU:
DLT
Availability:
In Stock
$519.20
Estimated price. Final price and availability are subject to confirmation. Contact our sales team for a current quote.
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The Williams AV DLT 400 offers secure, clear two-way communication with up to 16 hours of talk time and a range of 900 feet using FHSS technology.

The Williams AV DLT 400 Digi-Wave Intercom Transceiver provides dependable wireless communication for professional environments. Operating on the 2.4 GHz ISM band with frequency hopping spread spectrum (FHSS), it achieves a communication range up to 900 feet, adapting to various environmental conditions. Its lithium polymer battery with smart charge technology delivers up to 16 hours of talk time and fully recharges in about five hours via USB-C.

This transceiver supports multiple audio inputs including an internal microphone, a 3.5 mm mic jack with adjustable gain, and a USB-C line input. Audio output is available through a 3.5 mm TRRS headphone jack. The device features an OLED display for clear status indicators and robust security with 87-bit encryption, PIN protection, and settings lock. Compact and lightweight, it measures 4.22 x 2.60 x 0.5 inches and weighs 3.3 ounces, making it ideal for integration into the DSS 2-Way Intercom System.

  • Operates on 2.4 GHz ISM band with FHSS technology
  • Up to 900 feet communication range depending on environment
  • Lithium polymer battery with 1800 mAH capacity and smart charge
  • Offers up to 16 hours of talk time per charge
  • Multiple audio inputs: internal mic, 3.5 mm mic jack, USB-C line input
  • 3.5 mm TRRS headphone output with 25 mW power at 32 ohms
  • OLED display indicators and 87-bit encryption with PIN lock
  • Compact size: 4.22 x 2.60 x 0.5 inches; weight: 3.3 oz including battery

Specifications

Approvals
FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki
Audio Output
Headphone: Max SSPL 116.8 dB Line: USB-C, Adjustable level
Battery
Lithium Polymer with Smart Charge Built into Transceiver; 1800 mAH
Battery Life
Up to 16 Hours Talk Time per Charge with 1 Channel Transmitter and 1 Channel Receiver Auto Sleep Mode after 5 Minutes of no RF Signal from Compatible Devices
Box Dimensions (LxWxH)
6.1 x 4.4 x 2.8"
Charging Connector
USB-C, 2 Contacts for Use with CHG 412
Charging Time
Approximately 5 Hours
Color
Black and Silver
Compatible Receiver
DLR 400 RCH, DLR 400 ALK, DLT 300 with Limitations, and DLR 360 with Limitations
Dimensions (WxHxD)
4.22 x 2.60 x 0.5" / 10.73 x 6.6 x 1.26 cm
Frequency Response
Intercom Mode: 100 to 7200 Hz Other Modes: 100 to 11,500 Hz
Headphone Output
3.5 mm TRRS headphone jack 25 mW 32 ohms
Indicators
OLED
Line Input
USB-C, Adjustable level
Microphone Input
Internal Microphone (Disabled when MIC Jack Engaged) and 3.5 mm Phone Jack (Sleeve) with Electret Microphone Bias, Adjustable Gain with 63 dB Range
Modulation
FSK
Operating Frequency
2.4 GHz (ISM band); 2402 to 2476 MHz FHSS
Operating Temperature Range
14 to 113°F / -10 to 45°C
Package Weight
0.585 lb
Range
Up to 900' / 274 m (Depending upon Environmental Conditions)
RF Power Output
19 dBm Typical
Security
87-Bit Encryption (300 Series Compatible) 128+87-Bit Encryption, Encryption PIN, Lock for Settings
Side Tone
-6 dB Below Volume, Tone Variation (Off, Low, and High Settings Available)
SNR
73 dB (A-Weighted, Default Receiver Volume with Mic Input )
THD
0.1% (Default Volume, 1 kHz)
Voltage
OLED 14 VDC RF 5 VDC Logic 3.3 VDC
Weight
3.3 oz / 94 g (Including Battery)
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