These JBL wireless microphones are a great addition to my PartyBox. They were very easy to set up and connected quickly without any hassle. The sound quality is clear and the microphones have good range, making them perfect for karaoke, parties, and family gatherings. I also really like that they are rechargeable, so I don't have to worry about constantly replacing batteries. They feel well-made and work seamlessly with the PartyBox. Overall, a great wireless microphone set for the price. Highly recommended if you have a JBL PartyBox and enjoy karaoke or hosting parties!