This is for a Shure PSM400 wireless monitoring system. These are in excellent condition and function perfectly. Here's what you get: 1 x Shure P4T transmitter w/attached front antenna (HF, 722-746Mhz) 1 x Shure P4R beltpack receiver 1 x Shure zippered receiver storage case 1 x Shure PS41US 100-240V power adapter has US two blade plug and labeling, but is exact same inside as all international versions. I'm both a performer and an engineer, and I guarantee this to work perfectly and to be as described.The item "Shure PSM 400 UHF Wireless Professional On-Stage IEM Monitor System P4T P4R HF" is in sale since Monday, February 23, 2015. This item is in the category "Musical Instruments & Gear\DJ Equipment\DJ & Monitoring Headphones". The seller is "chull2" and is located in Chippewa Falls, Wisconsin. This item can be shipped worldwide.