Williams Sound Digi-Wave 400 Interpretation System for Two Presenters and 20 Listeners

The 20-Person Portable Digi-Wave 400 Series Interpretation System is a secure, wireless listening system that can accommodate two presenters (one language plus floor) and 20 listeners.

CODE: DWS INT 3 400 ALK-01

System Includes:

• 2 × DLT 400 transceivers
• 20 × DLR 400 ALK receivers
• 2 × MIC 144 headset microphones
• 20 × EAR 022 surround earphones
• 1 × CHG 404 DW 4-slot charging bay
• 20 × BAT 010-2 AAA alkaline batteries
• 1 × CCS 042 DW system carry case
• 1 × CCS 061 BK black silicone skin
• 1 × CCS 061 GR grey silicone skin

CHG 404

• Dimensions: 6”L x 5”W x 3”H (15.6 cm x 12.7 cm x 7.85 cm)
• Weight: 0.70 lbs (0.3 kg)
• Color: Black and clear plastic
• Power Input: AC 100-220V 50/60Hz 0.5A (max)
• Power Output: DC 5.0V 1.1A per bay (22W max)
• Unit Capacity: 4 Units
• Indicators: Individual Charging Indicators: Blue LEDs light up dividing clear panels
• Compatible Units: CHG 404 WF: WF R1; CHG 404 DW: DLT 400, DLR 400 RCH (Appropriate USB cables can be used with any CHG 404. See Note.)
• Warranty: 1 year (90 day warranty on cables and power supply)
• Approvals: WEEE, RoHS, CE, FCC, IC
• Notes: Accepts USB type A plugs, with a USB-C or with a micro-B plug that can connect to the device to be charged.

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.

NOTE: DLR 400 ALK units are not compatible with the special AIM features.

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 if no RF signal from compatible devices (Power can be turned off in Advanced Settings if desired)
• 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):
  • Interpretation, Tour, Hearing Asst (≤4 mics): 100 – 11,500 Hz
  • Other Modes: 100 – 7,200 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 Max
• 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.

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