Description This voicechangermade of safe and gentle materials. Thevoicechangeris efficient and practical, sensitive and gentle, can effectively reduce noise, and provides excellent reverberation effects. A very good sound card. This is also a good gift choice for friends, they will like this voice changer very much. Features -Color:As Shown -Material:Plastic -Size:10.60X5.40X1.20cm/4.17X2.12X0.47in -Input voltage:5 V -Working time: 3-6hours -Signal to Noise Ratio:≥70db -Frequency Response:100HZ-20KHZ -Battery capacity: 300-500mAh. -Sound channel: 2.1 -You can also use the button to adjust each sound to get more different sounds. - Perfect for chatting with friends and entertainment, online games and voice changes. - You can connect mini sound cards to your phone, disguise your voice when you're talking to someone. - It can trick your friends and bring you interesting responses, especially in online games where no one knows who you are. - You can even surprise your friends by playing different characters in the game.Package list: 1 x voice changer