1、FINE TUNING: This handheld sound changer has at least 7 different sound changes, and you can use the fine tuning button to adjust and make you get more different sounds. 2、8 EFFECTS: With 8 kinds of interesting sound effects, also provide rich simulation scene modes, such as KTV, DJ, phonograph, and recording studio. 3、WIDE COMPATIBILITY: Can be used on any mobile phone, computer, tablet, game console, switch. You need an adapter when using on computer, for iOS system needs to purchase a separate interface conversion cable. 4、EASY TO USE: Plug and play, no need to install any driver, just connect the voice changer with the device, compact in size and convenient to carry. 5、INTERESTING LIFE: You can change your voice when you talk to others on phone calls or gaming, make your life more interesting.