Audio-Technica ESW-T4107/925C21 Desk Stand Transmitter with 925C21

Designed for modern conferencing and monitoring environments, the Audio-Technica ESW-T4107/925C21 desk stand transmitter provides clear, scalable wireless audio ideal for videoconferencing, web conferencing, security monitoring and surveillance. As part of Audio-Technica's ESW DECT wireless system, this desk transmitter reduces frequency coordination headaches and supports high channel counts with selectable Standard (48-channel) or HD (96-channel) modes. The unit preserves full audio fidelity across 20 Hz–20 kHz and pairs with cardioid ES925 gooseneck capsules to capture focused, low-noise speech for professional AV installs.

IT and AV teams will appreciate compatibility with Audio-Technica Wireless Manager for centralized system management, selectable RF power for optimized coverage, and customizable presets for repeated deployments. Practical features include multiple mute behaviors, a 2-state RGB mute indicator, and a long-lasting internal lithium-ion battery that can charge via USB-C while in use—minimizing downtime during long sessions. Ideal for corporate boardrooms, courtrooms, houses of worship, and integrated security setups, the ESW-T4107/925C21 delivers dependable wireless performance. Add it to your next installation to simplify mic management and improve intelligibility across conferencing and surveillance workflows.

• Scalable DECT wireless system delivers reliable, interference-resistant audio for videoconferencing, security monitoring and surveillance
• Compatible with ES925 gooseneck mics and Wireless Manager for centralized control and easy deployment across rooms or sites
• Selectable channel modes (48/96) and RF power optimize capacity and coverage so you can run many simultaneous mics with minimal latency
• Flexible mute modes (toggle, touch-to-talk, touch-to-mute) and 2-state RGB status indicator improve user control and on-camera clarity
• Rechargeable lithium-ion battery with USB-C charging lets the transmitter operate while charging for uninterrupted all-day use
• Presets and customizable settings simplify setup for boardrooms, courtrooms, houses of worship, and commercial security applications