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The DWS INT 4 300 is a completely portable, wireless, single-speaker (floor) plus 2-language interpretation system. Ideal when security, sound quality and flexibility are critical. Designed for small - to medium-size conferences, meetings or other events where one language is shared by two interpreters. System can serve up to 25 listeners. Additional DLT 300's can be purchased separately to accommodate up to 14 additional languages. Additional DLR 360's can be purchased separately to accommodate additional listeners. Can serve unlimited number of listeners within recommended range.
DWS INT4 300 is ideal for a shared language / one floor / two interpreter scenario:
One DLT 300 transceiver is set up as body-worn transmitter to provide a direct audio feed from speaker to two interpreters. Interpreters 1 and 2 then use second and third DLT 300's to both listen to the speaker and transmit their simultaneous interpretation to the audience on separate channels. The audience, using DLR 360's, can also tune in to Ch. 0 for hearing assistance (they can toggle back and forth between CH 0 for floor speaker and CH 1 or CH 2 for interpreted languages).
Another way the system can be used is in a single-language interpretation scenario. Here, the interpreters can work together by "spelling" each other (giving each other a break), interpreting into the same language for long jobs. In this scenario, both interpreters use DLTs to listen to the floor on channel 0, and take turns interpreting the same language on the same channel - by switching one unit on when the first interpreter speaks, then switching that unit off and switching the second interpreter's unit on. Each interpreter must toggle on/off by pushing the TALK button – leaving only one TALK button on at any one time.
Alkaline, 1.2 Volt
Transceivers: DLT 300, DLT 100 2.0, DLT 100
Receivers: DLR 360, DLR 60 2.0 and DLR 60
110—240V AC @ 50-60 Hz
5 volts DC @ 1.2 amps
6’ (1.8 meters)
The receiver shall be a digital receiver operating on the 2.4GHz ISM band. It shall have the ability to communicate with the DLT 300 transceiver.
The receiver shall be housed in plastic enclosure 3.54" H x 2.36" W x 0.63" D (90 mm x 60 mm x 16mm) and have an LCD on the front panel. It will have a 30-pin connector supporting audio output and charging capability. It shall support recharging of NiMH batteries when used with Williams Sound compatible chargers or docking station.
The receiver shall have a battery life up to 24 hrs with two AAA Alkaline batteries, and up to 18 hrs with two NiMH batteries. It’s power will automatically shut off after approximately five minutes when no RF signal is detected from any compatible devices.
The receiver shall have 3.5mm mono/stereo headphone jack with all controls on the front of the unit. The receiver shall operate 15 simultaneous channels and shall have a 65 dB (A weighted) S/N ratio with an audio frequency response of 140 Hz to 11.5 kHz in Conference Mode and Interpreter Mode, and 140 Hz - 7.6 kHz in Intercom Mode.
The transceiver shall have power, vol +, vol -, v and ^ buttons.
The transceiver shall have FCC, Industry Canada, CE approvals and be RoHS, WEEE and RCM compliant.
The receiver shall have a two year parts and labor warranty (90 days on headphones and earphones).
This receiver shall be the Williams Sound model DLR 360.
These specifications are Preliminary and may be subject to change without notice.
2.36" W x 3.54" H x 0.63" D
(60 mm x 90 mm x 16 mm)
1.7 oz. (47 g) without batteries.
2.4 GHz (ISM band)
Up to 15 simultaneous channels (one way mode)
Black ABS Plastic
2 x AAA Alkaline or NiMH
Alkaline Disposable (BAT 010-2): Up to 24 hrs
NiMH Rechargeable (BAT 022-2): Up to 18 hrs
Auto Sleep Mode after 5 minutes of no RF signal from compatible devices
Audio Frequency Response:
(-3dB knee level)
Conference Mode: 140 – 11.5 KHz
Intercom Mode: 140 – 7.6 KHz
65 dB (A-weighted)
Headphone Audio Output:
3.5 mm stereo jack with mono output for headphones, earphones, or neckloop
27 mW maximum @33Ω mono
Internal Speaker (disabled when headphone jack in use)
Power, Volume +/-, Channel +/-, Setup, Battery Type
LCD shows status: Battery Level, RSSI, Group/Channel#
Red LED - blinks when charging
Green LED - stays on when charged
30-pin iPod Style for charging and audio out
DLT 300 only
32° – 122°F (0° to 50°C)
2-bay CHG 102, 12-bay CHG 1012, TFP 045
Silicone Skin, Lanyard, Wrist Strap
FCC, Industry Canada, RoHS, CE, WEEE, RCM
2 years parts and labor (90 days on accessories)
The transceiver shall be a digital transceiver operating on the 2.4 GHz ISM band utilizing FSK modulation with patented frequency-hopping software to reduce interference potential. It shall be compatible with the DLR 360 Receiver. It shall be housed in plastic enclosure 4.07" H x 2.43" W x 0.44" D (103.3 x 61.8 x 11.3 mm), have an internal rechargeable Lithium Polymer battery with smart charge built into the transceiver and an LCD on the front panel displaying, battery level, mode, time, channel number, group number, and number of other DLT’s with the talk button on (up to 6). It shall have a built-in microphone and speaker for users opting not to use a headset.
The transceiver shall have a battery life up to 14 hrs per charge and take approximately 5 hrs to reach full charge. Power will automatically shut off after approximately five minutes when no RF signal is detected from any compatible devices.
The transceiver shall operate in one-way or two-way mode (up to six speakers in a group at any given time) and have a range of up to 750 ft (229 m).
The transceiver shall have power, vol +, vol -, talk, CH +, CH -, v, GRP and ^ buttons. It shall have an illuminated talk button with a tactile braille dot.
The transceiver shall have a menu setup mode via front panel buttons configurable for (1 or 2-way operation), (master or guest operation) and (floor + 14 language portable interpretation where common floor language is used).
The transceiver shall have 3.5mm mono/stereo microphone and headphone jacks, all controls are on the front of the unit and a multi-pin style jack on the bottom provides battery charging access.
The transceiver shall operate 15 simultaneous channels in interpretation mode, support 4 simultaneous groups in two-way mode, allow a maximum of 4 simultaneous talkers in 2-way mode, and a maximum of 6 simultaneous talkers in Intercom Mode. It shall have a repeater mode to increase the range of the system.
The transceiver shall have a 74 dB (A weighted) SNR with a frequency response of 140 Hz to 11.5 kHz in Conference and Interpreter Modes and 140 Hz - 7.6 kHz in Intercom Mode.
The transceiver shall have FCC, Industry Canada, CE approvals and be RoHS, WEEE and RCM compliant.
The transceiver shall have a two year parts and labor warranty (90 days on headphones, battery, charger and earphones).
This transceiver shall be the Williams Sound model DLT 300.
|Dimensions||4.07"W x 2.43"H x 0.44"D (103.3 mm x 61.8 mm x 11.3 mm)|
|Weight||2.9 oz (82 g) including battery|
|Case Material||Black ABS plastic|
|Battery type||Lithium Polymer with smart charge built into transceiver; 2000 mAH|
|Battery life||Up to 14 hrs talk time per charge Current consumption range: 39 mA @ idle to 94 mA w/1 Ch Tx and 3 Ch Rx|
|Power Save||Auto Sleep Mode after 5 minutes of no RF signal from compatible devices|
|Charge time||5 hrs. TFP 045 with cable and international adapters|
|Optional Chargers||2-bay CHG 102, 12-bay CHG 1012, TFP 045|
|Simultaneous Channels/Groups/Talkers||Up to 15 simultaneous channels (0-14) (Interpretation mode) Up to 4 simultaneous groups (2 way mode) Up to 4 simultaneous talkers per group (2-way mode) Up to 6 simultaneous talkers per group (2-way Intercom mode)|
|Operating frequencies||2.4 GHz (ISM band); 2402 – 2476 MHz FHSS|
|Audio Frequency response (-3dB Knee Level)||Conference Mode, Interpreter Mode: 140 – 11.5 KHz Intercom Mode: 140 – 7.6 KHz|
|SNR||74 dB (A-weighted, Maximum output)|
|Microphone input||Internal microphone (disabled when MIC jack engaged) and 3.5 mm phone jack (tip/sleeve) with electret microphone bias, adjustable gain with 63dB range.|
|Headphone output||3.5 mm phone jack; 33 Ω load|
|Audio output||Max SSPL 90 111.8dB (EAR 013), 116.8dB (EAR 041) Internal speaker (disabled when haedphone jack in use) <20mW @ 10% THD/RL = 33Ω|
|Range||Up to 750 ft (depending upon environmental conditions)|
|RF output||14 dBm Typical|
|Security||87 bit encryption, Secure Key Code, Setup Lock (SLOC)|
|Controls||Front panel push buttons for volume up/down, group select, menu access and selection, timer, time, MIC on/off, power on/off, tone control SLOC access and Secure Key access. System reset button (rear panel)|
|Outputs||3.5 mm stereo/mono headphone jack; 30 pin charging jack with audio out to base stations|
|Side tone||-12 dB below volume, tone variation [ST:0 = Off, ST:1 = -6 dB, ST:2 = -12 dB]|
|Indicators||LCD (Group, channel, volume level, battery status, mode, number of people with talk button on)|
|LED’s||(charge status) Red LED around talk button when enabled.|
|Docking Connector||30-pin Connector for charging and audio in/out|
|Compatible Receiver||DLR 360 only|
|Approvals||FCC, Industry Canada, CE, RoHS, WEEE, RCM|
|Warranty||2 years parts and labor (90 days on accessories); 6 months on internal battery|
20 - 20kHz
Max Power Input
118 dB @ 1kHz
2 x 3.5 mm
150 - 18 kHz
105 dB @ 1 kHz
20 g (0.7 oz)
3.5 mm mono
1 - 10 VDC
80 Hz - 18 kHz
-68 dB ± 4 dB
Signal to Noise Ratio
Replacement Lapel Clip
|Digital Brochure - Spanish - High Res||Brochures||Español|
|Digi-wave™ 300 Series 4-Page Brochure - German||Brochures||Deutsch|
|Digi-wave™ 300 Series Manual - Portuguese||Manuals||Portuguese|
|Digi-wave™ 300 Series Manual||Manuals||English|
|Digital Brochure - Spanish - Low Res||Brochures||Español|
|Digital Brochure - Low Res||Brochures||English|
|Digi-wave™ 300 Series Specifications||Specifications||English|
|Digi-wave™ Applications Guide||Application Guides||English|
|Digital Brochure - High Res||Brochures||English|
The DWS INT 4 300 is a one-speaker, 2-language interpretation system. It is set up to have one speaker (Floor) with a DLT 300, and two Interpreters with DLT 300's interpreting into two languages. Both Interpreters listen to the Floor on Ch. 0 and the first Interpreter speaks the interpreted language to the audience on Ch. 1, while the second Interpreter speaks the interpreted language to the audience on Ch. 2. The audience, using DLR 360's, can listen to the speaker on Ch. 0 or the first Interpreter on Ch. 1, or the second Interpreter on Ch. 2.
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