Features: The main function is sing and Karaoke, but it also can be a BT speaker In addition, you can use audio cable or connect BT to record your voice. Can connect with all BT devices within 10m without obstacle. Use 3-layer noise reduction technology that filters air flowing and wind noise effectively Two channel stereo headphones produces a more stunning KTV live-sound. It can alter the sound and change the volume, different control of bring endless fun. Support for external TF cards(not included) and USB port. Mini home KTV for music playing and singing at any time. It\'s fantastic for your family gatherings, birthday parties, outdoor activities and musical instrument recording.