For sale - the renowned Shure GLX-D Digital Wireless System. Includes: transmitter, receiver, two rechargeable li-ion factory batteries, factory battery charging dock and TrueTone 1Spot power supply. These things are built like tanks and provide more clarity than cables, due to their capacitance, in my opinion. The extra li-ion battery and charger is a must. I means you will never find yourself with a discharged transmitter at a gig as long as you bring the extra (charged) battery. (The extra battery and charging dock would be $70 if purchased seperately.) It is in perfect working order, and has never once let me down.