7 Different Sound Changes -- This Hand-held Voice Changer has 7 different sound changes, Man to woman, Woman to man, Little girl, Baby, Magic voice, Deep voice, Prime. Perfect used for making calls and entertainment with friends, voice change of online games, etc. It is a must-have device How to Install -- First, you need to use the adapter which included in the package to connect your phone or other devices. Second, use the another side of the adapter to connect the top of changer. Finnally, use your headset to connect the botton of changer. Please make sure you plug insert deep in the hole. Then charger can work Need the Adapter -- This sound effects device can be used on any mobile phone, computer, tablet , game console, game console, and any game platform. When use voice charger on PC, need a adapter: Headphone microphone two-in-one conversion line, then make configuration. (Included) Convenient to Use -- Very small, convenient to carry, plug and play. Very easy to use, and no need to install any driver. Just put this voice changer close to your mouth, and your sound change as you please The interface of this voice changer is 3.5mm type; it is ok to use an audio conversion cable with a 3.5mm interface. It can be used directly on your favorite headphones, headsets Type: voice changer Signal to noise ratio: 106dB Charging input: DV5V/1A Battery energy: 3.7wh Battery efficiency: full power about 3-4 hours colour: black Material: ABS Size: 7.5x3.5x1.1CM Package Contents: 1 x Voice Changer 1 x USB charging cable 1 x audio cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.