Specifications:1) Multifunctional tuned sound card, fully functional, simple to operate, easy to use, built-in lithium battery. Universal use for cell phones and computers.2)Adjustable high / medium / low tone, high tone makes the sound full of penetration and clear, medium tone makes the voice more stable, bass more clear and transparent.3) One key to eliminate the sound, effectively eliminate the song, live sound more clear and penetrating.Live broadcast mode, you can switch with one key, easy to deal with a variety of occasions, so you are more professional in live broadcast.4) Electronic tone, professional-grade electronic tone adjustment, customize and personalize different electronic tones, change the different sounds.5)Warm-up atmosphere sound effect, you can express the mood of the live performer vividly through the atmosphere.Professional and beautiful, one-click sound change.6)Automatic sound recognition, intelligent reduction of the volume of background music.Package Included:1 * M9 sound card2 * Audio Cables2 * USB Type-C Cable1 * English manual