Car Guardiance Kids Karaoke Machine, Girls Karaoke Machine Toys Music Player with Microphone & Lights, Battery Operated Portable Singing Machine with Adorable Sing-Along Boom Box for Girls Sing along fun! Hours of sing along fun for kids and parents, singing to your favorite songs. Two microphones  this karaoke set comes with two microphones, separate volume control for microphone & speaker. Four streaming options  sing along with your favorite sounds via Bluetooth, USB, aux plug or FM radio. Child friendly  small and easy to use, lightweight for your child to carry everywhere he or she goes. Two Power options  you can power This karaoke machine with 4 AA (not included) or a 5Vusb cable (not included).