Wireless Bluetooth direct connection solves the single-interface charging problem. Most mobile phones have a single charging interface and cannot karaoke while charging. This device connects via Bluetooth for wireless operation, letting you use it without occupying the charging port. Live mode with one-click operation provides an easy, professional setup for various occasions. The on-device keys are muted, effectively reducing unintended noise and resulting in clearer, more penetrating sound during live broadcasts. Constructed from high quality ABS material, this unit is lightweight and durable. The treble, midrange, and bass are adjustable to tailor the sound: - Treble: full, bright, clear - Midrange: stable vocal presence - Bass: clean and transparent The sound card automatically recognizes the input and intelligently reduces the volume of background music. It is compatible with both mobile phones and computers, offering full functionality and ease of use. Practical applications - Live streaming or karaoke on a phone while charging, enabling uninterrupted sessions. - Online teaching, meetings, or broadcast scenarios where clear voice and reduced background noise are important. - Small-scale performances or group voice chats, conferences, or live events at home or in a small venue.