BT wireless microphone and speaker combo, work at the same time.Three-layer automatic noise reduction design, restore real sound, karaoke level experience. It supports TF function, plug and play, with power off playback. Multi-function adjustment panel, rich and varied functions. Compatible with many devices and app, suitable for Windows/MAC/IOS/Android. Meterk Wireless Bluetooth Karaoke Microphone, Handheld Karaoke Mic Speaker Singing for Kids Teens Party 【PARTICULAR DESIGN】 - The excellent design of karaoke microphones is very suitable for your hand, which let you feel more comfortable. And the built-in high-quality Bluetooth module can be used as a wireless speaker, mp3 player, and recorder, compatible with various singing applications. 【TWO WAYS CONNECTION】- Bluetooth 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 clear audio and the vividly sound effect let you listen and sing anytime and anywhere. 【HIGH COMPATIBILITY】- Supporting micro SD card max 32GB(NOT INCLUDED) and song switch. The Bluetooth has a great distance of connection(10m). 【EASY TO USE】- Multi-function buttons, easy to switch to different modes, adjust microphone, echo, and music volume separately, enjoy singing along with the music. With echo mode, a karaoke mic can bring a surrounding immersion.