Listen Technologies LR-4200 Intelligent DSP RF Receiver, 72 MHz

Optimize audio monitoring and assistive listening with the Listen Technologies LR-4200 Intelligent DSP RF receiver. Built for security, surveillance, tour and AV professionals, this compact audio receiver delivers best-in-class sensitivity and 20 dB lower noise for clearer communication across venues. The LR-4200 operates on the 72 MHz band and pairs high-performance DSP with an OLED display for instant channel, battery and volume status. An integrated neck loop and DSP loop driver provide improved T‑coil hearing-aid support, while dual 3.5mm outputs let two listeners share a feed during training or monitoring. Its micro-USB port works with Listen’s iDSP software for charging, programming and firmware updates—streamlining fleet management for IT and AV teams. Lightweight and ergonomically designed, the LR-4200 reduces wearer fatigue and simplifies deployment across security checkpoints, surveillance stations, guided tours and conference environments. Backed by rechargeable Li‑Ion battery technology and surge protection, it lowers operating costs and boosts reliability. Add the LR-4200 to your toolkit for dependable RF audio reception—order now or contact us for bulk procurement and integration support.

• Exceptional listenability with industry-leading RF sensitivity and 20 dB less noise for clearer audio and extended range in monitoring, security, and surveillance applications
• Integrated neck loop and DSP loop driver improve T‑coil hearing-aid compatibility for reliable assistive listening in public venues and meetings
• Ultra-compact, lightweight design simplifies wearability, storage and distribution for event staff, tour groups, or security teams
• OLED display and micro-USB connectivity enable fast channel checks, firmware updates and inventory management using iDSP software
• Dual 3.5mm outputs let two users share a single receiver for flexible monitoring and training scenarios
• Rechargeable Li‑Ion battery reduces operating costs and downtime compared to disposable batteries, with voltage spike protection for durability