This item is a sound or voice changer. It supports to hedge or original sound, different sound modes adjustable, or live streaming. Can be a good choice for your friends, they will like this voice changer very much. 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. - Made of metal material for lasting use, low consumption and better stereo effect. - Built-in many sound effects, easy to use. Wide range of uses, suitable for mobile phone, computer and handset. - Plug and play, this voice mixer is no need to install any driver, very easy for both indoor and outdoor use. - With it, you can get more different funny sound experiment. Excellent for instant karaoke singing. - Perfect with families, friends, online game team, online chat for making calls, having fun and giving them a surprise. Package list: 1 x voice changer 1 x charging cable 1 x audio cable 1 x user manual