Experience crystal clear clarity with the JBL wireless microphones. No jamming, delay or distortion - just impeccable sound quality backed by JBL Original Pro Sound. Connect two wireless mics for a seamless blend of voices through the speaker, with up to 6 hours of playtime. Just plug the receiver into your speaker, turn on the mics, and you’re ready to shine. With replaceable AA batteries, you can keep the party going all night. Compatible with any JBL PartyBox speaker.