Williams AV DLR 400 RCH Digi-Wave 400 Digital Wireless Listening System Receiver( Rechargeable Version), Black, 2.4GHz (ISM band) Frequency Band, Up to 900ft (274m) Range
The Digi-Wave system is a digital spread-spectrum (DSS), simultaneous two-way wireless listening system. Using it's frequency-hopping algorithm, it avoids interference and is a very secure method of communication. The Digi-Wave communication system allows users to listen and talk to one another wirelessly in a variety of scenarios.
Key FeaturesGuided Tours - with one or more tour guides (2-way), with audience participation (2-way), or without audience participation (1-way)
Language Interpretation - one or more interpreted languages transmitted to audience (1-way)
Intercom - with up to six people able to speak simultaneously, and even more listening
Hearing Assistance - featuring boosted audio for improved comprehension
SpecificationsFrequency Band: 2.4 GHz (ISM band); 2402 – 2476MHz FHSS
Audio Frequency Response: Intercom Mode 100 – 7200Hz/Other modes 100-11500Hz
SNR: 73dB (A-weighted)
THD: 0.1% (Default Volume, 1kHz)
Range: Up to 900ft (274m)
Headphone Output: 3.5mm TRRS headphone jack; 25mW, R32 Ω
Modulation: FSK
RF Sensitivity: -92dBm
Security: 87 bit encryption, 87+128 bit Encryption, Encrpytion PIN, Lock for settings
Indicators: OLED
LEDs: Bi-color, changing green and red LED at top
Temp. Range: 14° – 113°F
Compatible Units: DLT 400, DLT 300
Battery Type: Lithium Polymer with smart charge built into transceiver; 1800mAH
Battery Life: Up to 32 hrs per charge
Power Save: Auto Sleep Mode after 5 minutes of no RF signal from compatible devices
Dimensions: 4.22"W x 2.60"H x 0.50"D
Weight: 3.3 oz.