I purchased it, but I haven't used it much as I'm not currently in a band. The usage time is about 30 minutes. I have confirmed both power and sound output before listing. All accessories are included. It worked with all types of guitars I have, including Stratocasters, Les Pauls, unique shapes, and Precision Basses. The accessories include the transmitter, receiver, original box, dual USB cable, and instruction manual. It is charged via USB cable.