Williams AV DLR 400 ALK Digi-Wave 400 Series Receiver, Operates with Alkaline Batteries, Black

Designed for professional assistive listening and secure communications, the Williams AV DLR 400 ALK Digi-Wave 400 Series Receiver delivers reliable, high-clarity audio for guided tours, conferences, interpretation, and security monitoring. The compact receiver pairs industry-grade audio performance with practical field features: an operating range of up to 900 ft keeps staff and attendees connected across large venues, while common AAA alkaline batteries enable quick swaps and minimal downtime. Lightweight and pocket-ready, the DLR 400 ALK supports unlimited listeners so organizations can scale coverage for public events, training, or surveillance operations without per-user licensing. Backwards compatibility with Digi-Wave 300 series devices simplifies upgrades, and secure 128+87-bit encryption safeguards confidential communications during monitoring and interpretation tasks. The easy-to-read LCD and low-battery indicator streamline deployment and maintenance, and a 2-year limited warranty provides added peace of mind for integrators and event managers. Ideal for AV professionals, educational institutions, and security teams, this receiver enhances accessibility and operational efficiency. Add the Williams AV DLR 400 ALK to your toolkit to improve audio access and secure communication at your next event or monitoring assignment.

• Deliver crystal-clear audio for tours, conferences, and security monitoring so every participant hears instructions with confidence
• Up to 900 ft wireless range gives presenters and security teams freedom of movement across large venues
• Uses common AAA alkaline batteries for quick replacement and uninterrupted operation during long events
• Scales to unlimited listeners, making it ideal for large guided tours, training sessions, and crowd monitoring
• Backwards compatible with Digi-Wave 300 series to protect your existing investment and simplify system expansion
• Secure 128+87-bit encryption keeps sensitive communications private during surveillance, interpretation, and monitoring tasks