Multifunction: The portable sound card supports intelligent noise reduction, live sales, dodge elimination acoustic mode, three live stations, K song mode, one-key beauty, reverb mode, 13 electric sound modes, 11 special modes, 5 professional and 9 special effects. INTELLIGENT NOISE REDUCTION: The portable voice changer has a built-in intelligent noise reduction chip to change various electroacoustic effects. After successfully pairing, you can play the accompanying music with your phone and transmit it to the sound card via Bluetooth companion transmission, with stable Bluetooth transmission. MULTIPLE SOUND EFFECTS: In electronic music mode, 13 keys can be adjusted, 13 types of sound effects can be used for singing, and 9 types of live sound effects can also be used: laughter, kisses, applause, popping up, countdown, cold field, surprised, hitting yourself, and applauding, making the live broadcast vivid. TWO MODES: The dodge function is to reduce the volume of the musical accompaniment when the anchor speaks, reflecting a clear distinction between primary and secondary. The acoustic elimination function is to accompany the incoming sound, eliminate the human voice inside, and retain only the melody. LONG BATTERY LIFE: Mini live sound card built-in 1500 mAh lithium battery, long battery life, to meet the needs of long life, supports life while charging. Compact and lightweight, plug and play, universal for iOS for Android phones, computers, tablets, PCs.