PARTICULAR DESIGNThe excellent design of our karaoke wireless microphone is very suitable for your hand, which can make you feel more comfortable. And the built-in high-quality Bluetooth module can be used as speaker, player and Recorder, compatible with various singing applications 2 WAYS CONNECTIONBluetooth Connection Cable Connection. You just need to connect your phone with cable or Bluetooth, and then open the singing APP on your phone. The built-in clearly audio and vividly sound effect can make you enjoy listening and singing anytime and anywhere. Great for KTV singing, gathering singing, family singing, travel singing, car stereo, instrument recording, interviews and live ect HIGH COMPATIBILITY Supporting micro SD card max 32GB(NOT INCLUDED) and song switch. The Bluetooth has a great distance of connection(10m), and supports Android, iPhone, iPad, IOS and all Smartphone EASY TO USE Multi-function buttons can adjust the Music, Echo, Volume and PA/R. Free to switch the previous and next song mode. Adjustable echo length effect can bring super surround with immersive enjoy. And the USB port allow you to plug USB and turn this magic piece to MP3 and play directly Extended Playtime battery technology supplies 6-8 hours of continuous playtime on a single charge,ensures a longer sing time. Quicker charging, long-time lasting.