MULTIPLE FUNCTIONS: Mobile phone mini voice changer has beautiful voice, sound change, karaoke function, and you can also adjust each voice using the fine tuning button to enhance sound experience. DURABLE: Mobile computer sound card uses micro usb interface with clear and stable sound quality. Built in 450mah lithium ion battery, long battery life, made of ABS material, durable. WIDE APPLICATION: M11 live broadcast sound card is suitable for cell phones, computers, indoor and outdoor, suitable for live voice changing, chatting, games, recording, broadcasting and many other scenarios. FOUR SCENE MODES: Mobile computer sound card support acoustic, ktv, studio, electric sound modes and multiple languages. Perfect for calls, entertainment, and voice conversion for online games. EASY TO USE: Mini voice changer can change voice with one click, and multiple voices can be switched freely. Easy to carry, plug and play, just connect it to other devices and the sound will change.