【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.