Additional Bodypack Coverage for System 20 Pro Setups Need a bodypack for your System 20 Pro communication system? Look no further than the ATW-T1401 bodypack from Audio-Technica. Locked in with dual antennas, the bodypack facilitates fast, reliable connectivity to your system, complete with a cW-style locking 4-pin connector for use with several compatible Audio-Technica microphones. No matter which mic you choose, GearNuts A/V specialists report accidental transmissions are no issue, thanks to a built-in slide-to-mute switch. Additionally, the ATW-T1401 is compatible with NiMH battery operation, making sure your pack remains charged and at the ready throughout day-long productions. Complete with an easy-to-see front-panel OLED display, you'll always have an eye on your device's performance.Audio-Technica ATW-T1401 Features: Wireless bodypack transmitter for System 20 Pro communication systems Dual antenna design for fast, reliable connectivity with your system cW-style locking 4-pin connector with water and sweat-resistant design for use with several compatible Audio-TechnicaBodypack Transmitter with Dual-antenna designNiMH Battery CompatibilitycW-style 4-pin ConnectSlide-to-mute SwitchOLED Display