Williams AV DWS TGS 20 400 ALK Digi-Wave Tour Guide System

The Williams AV DWS TGS 20 400 ALK Digi-Wave Tour Guide System is for one guide and up to 20 listeners.

The transceiver in the system is DLT 400 from the Digi-Wave™ system. It is a digital spread-spectrum (DSS), simultaneous two-way wireless listening system. Using a 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. The receiver uses alkaline batteries.

A headset microphone and earphones are for use by the speaker and listeners. Headset microphone MIC 144 has a TRRS 3.5 mm plug and is for use with Digi-Wave DLT 400 transceiver only. The earphone hangs on the outside of the ear, excellent for use from one person to the next. This earphone is specifically designed for listeners with mild and low gain hearing loss.

Williams AV DWS TGS 20 400 ALK Digi-Wave Tour Guide System Features

• Two-way communication between 2 tour guides
• Tour group members can hear both guides
• Portable
• For factories, museums, tourist attractions, bus tours, education, corporate, etc.

• DLT 400 transceiver1
• DLR 400 ALK receiver20
• MIC 144 headset microphone1
• EAR 022 surround earphone20
• BAT 010-2 AAA alkaline battery20
• DW ACC PAC4 power unit1
• CCS 056 26 system carry case1
• CCS 061 GR gray silicone skin1

• BAT 010-2Alkaline, 1.2 Volt
• CCS 056 26
  • Interior Dimensions: 13.0” W x 18.0” L x 6.7”H (33 cm W x 46 cm L x 17 cm H)
  • Exterior Dimensions: 15.7” W x 19.7” L x 7.2” H (40 cm W x 50 cm L x 18 cm H)
  • Lid Inner Depth: 1.5” (4 cm)
  • Bottom Inner Depth: 5.2” (13 cm)
  • Approx. weight (empty): 6.6 lbs (3 kg)
  • Material: Copolymer
  • Minimum Temperature: -40ºF (-40ºC)
  • Maximum Temperature: 160ºF (71.1ºC)
• DLR 400 ALK
  • 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
• DLT 400
  • 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. 6 months on the internal battery. See Full Warranty on the website for details.
• EAR 022
  • 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