Infrared Headphone System (320-2052) Specifications Faxback Doc. # 6626 Transmission Mode:.......................................Infrared (900 mm) Frequency Modulation Operation Voltage:.............................Transmitter: 12V AC Adapter Headphone Receiver: Two AAA Batteries Frequency Response:.......................................50 Hz - 12000 Hz Distortion:.............................................................2% S/N Ratio:.................................45 dB (13 1/8 Feet or 4 Meters) Maximum Operation Distance:.............................20 Feet (6 Meters) Dimensions:................Transmitter: 3/4 x 4 1/2 x 3 1/2 Inches (HWD) (19 X 114 X 89 mm) Headphone Receiver: 7 1/2 x 7 1/2 x 2 1/4 Inches (HWD) (190 X 190 X 67 mm) Weight:........................................Transmitter: 4.3 oz. (122g) Headphone Receiver: 4.9 oz. (139g) Accessories:....................................................AC Adapter PHONO to 1/4-inch (7 mm) Connector PHONO to 1/8-inch (3.5 mm) Connector (LB/all-08/23/94)