Handheld transmitter with dynamic cardioid capsule that is compatible with Sennheiser ew 100 G3 receivers and every vocal style, and features an infrared sync function so it can tune to a G3 receiver with a simple push of the receiver's sync button. It provides wireless freedom to both performers and presenters alike. With rugged design and powerful sound, it is ideally suited for the stage as it is in the auditorium. Upgraded and revised features such as the enhanced graphic display, easily swappable capsule and included charging contacts make this transmitter a solid choice. Other features include an Auto-Lock function that avoids accidental changing of settings, an HDX compander for crystal-clear sound and battery indication in 4 steps, also shown on receiver display. A MZQ 1 microphone clip and two batteries are included. Frequency: 626 - 668 MHz