Selling because I bought another wireless system. I purchased this used and used it continuously for 4 hours in the studio after a full charge. The battery didn't run out during that time, so I think the battery condition is good. Of course, I've confirmed that it works. It operated stably without any unstable connections. Only the main unit and USB cable are included. Thank you. 2.4GHz digital wireless system, USB rechargeable, for guitar. - Model Name: U2 TRANSMITTER - Model Name: U2 RECEIVER - Connection Type: USB rechargeable - Output Terminal: 1/4 inch jack - Frequency Band: 2.4GHz - Accessories: USB cable Thank you for looking.