Telex model ADHB-4 (Advanced Digital Headset Box), New

The Telex ADHB-4 Advanced Digital Headset Box is a purpose-built USB audio interface for radio dispatch console positions, designed to work exclusively with Telex's C-Soft console software (version 5.000 or later). By processing audio internally and transferring the signal via USB, the ADHB-4 removes the dependency on inconsistent PC sound cards, giving dispatch operators reliable, professional-grade audio quality every time. Built as the successor to the HB-3+, the ADHB-4 dramatically expands capability, supporting up to six audio channels per position versus the HB-3+'s two-speaker limit. This makes it ideal for demanding, multi-line dispatch environments where clarity and channel management are mission-critical. Key connectivity includes footswitch input, output relays, auxiliary audio inputs, RJ11 and XLR microphone jacks, and a 1/4" dual-channel headset jack — covering the full range of equipment used in modern radio dispatch setups. A standout feature is the full-color LCD screen, giving operators an at-a-glance view of speaker activity, PTT (push-to-talk) status, IP address, and overall system health directly from their console position. With built-in Ethernet communication, the ADHB-4 also supports network-based management, allowing IT and system administrators to configure and monitor units remotely via a web interface. It's compatible with desktop systems running Windows 7 and remains backwards-compatible with Windows XP, offering flexibility for a range of existing dispatch center infrastructures. Whether upgrading an aging HB-3+ deployment or outfitting a new dispatch center, the Telex ADHB-4 delivers the audio reliability and channel flexibility that public safety and mission-critical communications teams depend on.