Audio Technica ESW-T4101 Body‑Pack Transmitter with AT831CH Lavalier Microphone

Audio‑Technica ESW‑T4101/831CH Body‑Pack Transmitter with AT831CH Lavalier Microphone for Engineered Sound® Wireless

• Lightweight body‑pack transmitter for the Engineered Sound® Wireless system
• Includes AT831CH cardioid condenser lavalier microphone
• Built‑in high‑quality omnidirectional microphone for standalone use
• Secure cH‑style locking 4‑pin connector for external microphones
• User‑replaceable lithium‑ion battery with charging dock compatibility
• Includes belt clip and removable neck strap

The ESW‑T4101/831CH is a complete wireless body‑pack solution designed for use with the Engineered Sound® Wireless system. Supplied with the AT831CH cardioid lavalier microphone, this package is ideal for presenters, instructors, and conference applications requiring focused vocal pickup and reduced background noise.

The transmitter features a built‑in omnidirectional microphone for quick, cable‑free operation, as well as a cH‑style screw‑down 4‑pin input connector for secure connection to the included AT831CH lavalier or other compatible Audio‑Technica microphones. The transmitter supplies 5V DC bias to power condenser microphones.

User Controls & Operation

A simple on/off/mute push‑button control allows intuitive operation during live presentations and meetings, enabling confident and discreet microphone management.

Power & Charging

The ESW‑T4101/831CH is powered by a user‑replaceable lithium‑ion (LI‑220) battery. Integrated charging terminals enable convenient recharging using the optional ESW‑CHG4 charging station (sold separately).

Design & Wearability

Featuring a built‑in antenna and durable construction, the ESW‑T4101 transmitter is designed for comfortable, reliable wear during extended use. The included belt clip and removable neck strap provide flexible wearing options to suit different presentation styles and environments.

Included Accessories

• AT831CH cardioid lavalier microphone
• Clothing clip
• Windscreen
• Belt clip
• Removable neck strap

Ideal Applications

• Conference rooms and boardrooms
• Corporate presentations
• Education and training environments
• Engineered Sound® Wireless system installations