Shure PS24US Replacement Power Supply SLX4, PGX4 or BLX4 Wireless Receiver Rated input: 100 - 240 VAC, 50-60 Hz, 150 mA maximum Rated output: 12 VDC, 400 mA Leakage current: less than 30 A Input cable: 72 inches (1.8 meter) long; two-prong plug North American A.C. plug Output cable: 72 inches (1.8 meter) long; DC Coax plug