Comes with Dual Wireless MicrophonesThe 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). Bluetooth Wireless ConnectionThis DJ mixer can stream audio directly to the console unit without cables, and it is compatible with Bluetooth-enabled devices such as smartphones, tablets, and laptops, allowing you to easily stream your favorite Music tracks are streamed wirelessly from Pandora or Spotify to the mixing board. Bluetooth works within 100 feet.