Williams AV DWS TGS 11 400 RCH – Rechargeable Digi-Wave Tour Guide System is backordered and will ship as soon as it is back in stock.
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Product Overview
The Williams AV DWS TGS 11 400 RCH is a rechargeable wireless tour guide system for one guide and up to 11 listeners, built on the Digi-Wave 400 digital spread-spectrum platform. It is a complete, fully portable tour guide audio package for facility tours, training walkthroughs, and small-group listening where no installed AV infrastructure exists. A DLT 400 transceiver pairs with 11 DLR 400 RCH rechargeable receivers on the license-free 2.4 GHz band, and the included CHG 412 PRO 12-bay charger in a carry case recharges the entire fleet overnight. Setup requires no base station, rack-mount components, or frequency coordination.
Product Description
The Digi-Wave 400 Series is a digital spread-spectrum (DSS), simultaneous two-way wireless communication system. Its frequency-hopping algorithm avoids interference from Wi-Fi and other 2.4 GHz traffic and provides a secure transmission path, with optional 87+128-bit encryption, an encryption PIN, and a settings lock for confidential environments. The guide transmits through the DLT 400 body-pack transceiver — via its built-in microphone or the included MIC 144 headset microphone — while listeners use DLR 400 RCH receivers with EAR 022 surround earphones.
Because every unit is rechargeable, daily operation is simple: drop transceiver and receivers into the CHG 412 PRO 12-bay charger after each session and they recharge in approximately five hours. The DLR 400 RCH delivers up to 32 hours of listening per charge and the DLT 400 up to 16 hours of talk time, comfortably covering multiple tour days between charges. Operating range reaches up to 900 ft (274 m) depending on conditions.
The same hardware also runs two-way intercom with up to six simultaneous talkers and an unlimited number of listeners, and language interpretation with one floor language plus up to 14 translated languages. That makes this kit equally useful for plant tours, museum programs, courtroom interpretation, team teaching, and staff communication in noisy commercial environments. The audience scales without limit by adding receivers.
System Includes
(1) DLT 400 transceiver
(11) DLR 400 RCH receivers
(1) MIC 144 headset microphone
(11) EAR 022 surround earphones
(1) CHG 412 PRO 12-bay charger in carry case
(1) CCS 061 GR grey silicone skin
How It Works

Need to cover a larger group? See the DWS TGS 23 400 RCH 24-user system, or browse the full Williams AV collection at Creation Networks.
Key Features
- 12-User Rechargeable Package — One transceiver and eleven receivers run entirely on internal lithium polymer batteries with drop-in charging.
- 12-Bay PRO Charger Included — The CHG 412 PRO charger, supplied in a carry case, recharges the complete system in approximately five hours.
- Digital Spread-Spectrum RF — Frequency-hopping operation on the license-free 2.4 GHz ISM band avoids interference without FCC licensing.
- Long Receiver Runtime — Each DLR 400 RCH provides up to 32 hours of listening per charge for multi-day tour schedules.
- Two-Way Intercom Capability — The platform accommodates up to six simultaneous talkers and an unlimited number of listeners.
- Language Interpretation Mode — The system supports one floor language and up to 14 translated languages for multilingual programs.
- Encrypted Transmission — Optional 87+128-bit encryption, a secure PIN code, and a settings lock protect sensitive audio.
- Fully Portable Deployment — No base station or rack-mount components are required, so the kit sets up in minutes at any venue.
- Clear Digital Audio — 100 Hz – 11.5 kHz response with 73 dB SNR keeps speech intelligible in noisy facilities.
Typical Applications
- Training room
- Government space
- House of worship
- Multi-purpose room
- Commercial meeting space
- Auditorium
Technical Specifications
DLT 400 Transceiver
| 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 |
| Battery | Lithium polymer, 1800 mAh, smart charge built in |
| Battery Life | Up to 16 hrs talk time per charge @ 1ch Tx and 1ch Rx |
| Charge Time | Approx. 5 hours |
| Operating Frequencies | 2.4 GHz (ISM band); 2402–2476 MHz FHSS |
| Audio Frequency Response (-3 dB) | Intercom mode: 100–7,200 Hz; other modes: 100–11,500 Hz |
| SNR | 73 dB (A-weighted) |
| THD | 0.1% (default volume, 1 kHz) |
| Microphone Input | Internal mic and 3.5 mm jack with electret mic bias, 63 dB adjustable gain range |
| Line Input | USB-C, adjustable level |
| Headphone Output | 3.5 mm TRRS jack; 25 mW @ 32 ohms |
| Range | Up to 900 ft (274 m), environment dependent |
| RF Output | 19 dBm typical |
| Security | 87-bit encryption (300 Series compatible), 87+128-bit encryption, encryption PIN, settings lock |
| Display | OLED |
| Operating Temperature | 14° to 113°F (-10° to 45°C) |
| Approvals | FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki |
| Warranty | 2 years (6 months on internal battery) |
DLR 400 RCH Receiver
| 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 |
| Battery | Lithium polymer, 1800 mAh, smart charge built in |
| Battery Life | Up to 32 hrs per charge @ 1ch Rx |
| Charge Time | Approx. 5 hours |
| Operating Frequencies | 2.4 GHz (ISM band); 2402–2476 MHz FHSS |
| SNR | 73 dB (A-weighted) |
| Headphone Output | 3.5 mm TRRS jack; 25 mW @ 32 ohms |
| Line Audio Output | USB-C, adjustable level |
| Range | Up to 900 ft (274 m), environment dependent |
| RF Sensitivity | -92 dBm |
| Compatible Units | DLT 400; DLT 300 with some limitations |
| Approvals | FCC, Industry Canada, CE, RoHS 3, WEEE, RCM, ANATEL, KC, Giteki |
| Warranty | 2 years (6 months on internal battery) |
CHG 412 Charger
| Dimensions | 9" L x 7" W x 1.5" H (23 cm x 17.8 cm x 3.8 cm) |
| Weight | 1.8 lbs (845 g) |
| Unit Capacity | 12 units (DLT 400 / DLR 400 RCH) |
| Output Rating | 5 VDC, 0.5 A per bay (12 charging bays) |
| Charging Time | ~5 hours |
| Power Supply Input | TFP 066, 90–240 VAC input, 1.5 A max |
| Approvals | CE, FCC, WEEE, RoHS, CB |
| Warranty | 2 years (cables and power supply 90 days) |
EAR 022 Earphone
| Style | Around-ear speaker |
| Plug | 3.5 mm mono |
| Cord | 39" |
| Driver Size | 23 mm |
| Nominal Impedance | 32 ohms |
| Frequency Response | 20 Hz – 20 kHz |
| Sensitivity | 118 dB @ 1 kHz |
Frequently Asked Questions
Does the system require an FCC license or installation work?
No. It operates license-free on the 2.4 GHz ISM band using digital spread-spectrum frequency hopping, and there is no base station or rack equipment to install.
How long do the rechargeable units last per charge?
The DLR 400 RCH receivers run up to 32 hours of listening per charge; the DLT 400 transceiver provides up to 16 hours of talk time. All units recharge in approximately five hours in the included CHG 412 PRO charger.
Can I expand beyond 11 listeners?
Yes. The Digi-Wave platform supports an unlimited number of listen-only receivers — add DLR 400 RCH or DLR 400 ALK units as needed. The 12-bay charger handles a full bay of rechargeable units; add chargers as your fleet grows.
Is this compatible with Digi-Wave 300 Series equipment?
The 400 Series supports 87-bit encryption for backward compatibility with DLT 300 devices, with some feature limitations. For full functionality, standardize on 400 Series hardware.
Can it be used for interpretation or intercom as well as tours?
Yes. The same hardware supports two-way intercom with up to six simultaneous talkers and interpretation with one floor language plus up to 14 translated languages.
What warranty does Williams AV provide?
A 2-year warranty against component failure and manufacturing defects, with 6 months on internal batteries and 90 days on cables and power supplies.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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