It's no party until you break out the JBL by Harman PartyBox Wireless Mic 2-Pack! Just plug them into your PartyBox portable speaker, or use the dongle for a wireless connection, and let your voice be heard! Cardioid pickup pattern delivers warm, clear, and crisp sound that'll have everyone sounding their best, and a built-in foam pop filter minimizes any extraneous vocal sounds when you sing a duet. A shock mount system keeps things quiet when you're passing the mic to someone else. Sing all night long with up to 20 hours of battery life, and you can even use the mics when they're charging on the PartyBox. Includes 2 wireless mics Plugs directly into your PartyBox speaker or via included wireless dongles Cardioid pickup pattern for warm, clear, and crisp sound Built-in foam pop filter minimizes extraneous vocal sounds Shock mount system keeps things quiet Up to 20 hours of battery life Mics can be used while charging