This is a voice changer. It is made of plastic material, durable to use. It provides convenience in live streaming, , singing, and etc. Easy to use control panel, even beginner will have how to use it quickly, convenient to use. Features -Color: Black. -Material: Plastic. -Size: About 7.20X5.50X1.10cm/2.83X2.16X0.43in. -Charging input: DC 5V/1A. -Mobile phone : 3.5mm. -Dynamic range: 106db. -Battery capacity: 600mAh. -Headphone jack: 3.5mm. -Signal to noise ratio: 106db. -Charging port: micro. - Professional noise reduction technology: Built-in dual DSP noise reduction chip to avoid the influence of current noise. - Ensure sound, and sing beautiful songs, reverb makes your voice more charming. - Multi-Application: home karaoke, voice chat, live, streaming and more, plug and play. - Choose the quality plastic material to make it safe to use, and you can use it with confidence. - You can give it as a gift to friends or families who love live broadcast, and they will be very happy. Package list: 1 x voice changer 1 x charging cable 1 x audio cable 1 x user manual