Built-in Dual DSP Noise Reduction Chip and ECHO: There are dual DSP noise reduction chips inside the sound card V8 voice changer to avoid the influence of current noise, ensure high quality sound, and sing beautiful songs, Reverb (ECHO) makes your voice more charming.we also have introduction videos of sound card on YTB.Please read the user manual carefully before using the V8 sound card Multiple Effects, Modes and Gameplay: 6 mode selections, 12 electro-effects options, 12 funny sound effects, 7 different gameplays, 3 sound transitions Multi-Device Support: mobile, computer, tablet, IOS, Andriod, electronic instruments and some gaming devices are compatible Multi-Application: Home Karaoke, Voice Chat, Live, Facebook, Periscope, Livestream, Tiktok, Wechat, Smule and more, Plug and Play You Will Get: 1*Fealliance Sound Card V8 Voice Changer; 1*USB charging cable; 2* audio cable; 1* user manual.To turn on our live sound card, press the power button for about 3 seconds until the indicator light is blue. If not, please charge the sound card