The audio mixer has a built-in wireless receiver module and is equipped with handheld dynamic dual wireless microphones with excellent sound quality. Click the mixer panel (UHF) and the microphones will automatically connect. Each microphone has 61 frequency selections and long transmission range (80-100 meters/260-328 feet) in open spaces. Note: Each microphone requires 2 AA batteries (not included).

Open Box, If you have questions, please message me. Thanks!