Impact PowerTrigger 16 Channel AC Transmitter and Receiver Set Transmitter | Receiver 2.5mm Sub-mini to PC Cable | 3.5mm to 1/4" Monoplug Adapter Up to 75' Wireless Range | Multi-voltage Receiver: 100-230 VAC 16 Wireless Radio Channels Includes: PowerTrigger 16 Channel Studio Receiver, Limited 1-Year Warranty, PowerTrigger Transmitter, Pre-installed 23A Battery