Wireless system for guitar and bass. Purchased new and used a few times in live performances. Includes transmitter, receiver, power adapter, instruction manual, box, and an ESP case for strap attachment as a bonus. Functionality has been confirmed: channel switching and cable tone changes work. Regarding this product's issues: the side of the receiver body is prone to degradation, and the surface resin coating has peeled off with wiping. There are no functional problems, but please refrain from purchasing if you are concerned about the appearance. Velcro for fixing is also attached to the bottom (please check the photos). Another issue is that the resin part of the cable input on the transmitter is worn, making it easier for the cable to come loose during performance. (An acquaintance reinforced it with tape.) I was conscious of retracting the latch when inserting and removing the connector, so the degradation is kept to a minimum as shown in the photos. The product will be packaged in its original box, with air cap and cardboard, and I will handle it with care.