7 Different Sound Changes -- This Hand-held Voice Changer has 7 different sound changes, Man to woman, Woman to man, Little girl, Baby, voice, Deep voice, Prime. Perfect used for making calls and entertainment with friends, voice change of online games, etc. It is a must-have deviceHow 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 the voice changer. Finnally, use your headset to connect the botton of the voice changer. Please make you plug insert deep in the hole. Then the voice charger can workNeed the Adapter -- This sound effects device can be used on any mobile phone, computer, , 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 will change as you pleaseThe interface of this voice changer is 35mm type; it is ok to use an audio conversion cable with a 35mm interface. It can be used directly on your favorite headphones, headsetsHOW 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 the voice changer.Finnally, use your headset to connect the botton of the voice changer.Please make you plug insert deep in the hole. Then the voice charger can work WARM NOTE:1. A voice changer device can be used on any mobile phone, computer, , game console, game console, and any game platform. But you need to confirm your device can support 35mm jack headphone.2. When use voice charger on PC, need a adapter: Headphone microphone two-in-one conversion line, then make configuration.SPECIFICATION:Type: voice changerMaterial: ABSColor: blackSignal to noise ratio: 106dBDynamic range: 106dBBattery capacity: 300mA/37VCharging input: DV5V/1ABattery energy: 37whBattery efficiency: full about 3-4 hoursSize: 78 * 36 * 11mmPackage Contents:1 * product1 * USB charging cable1 * audio cableOnly the above package content, other products are not included.Note: Light 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.