The Voice Changer has 7 different sound changes, Man to Woman,Woman to Man, Little Girl, Baby, Magic Voice, Deep Voice,Optimus Prime. It can be used on any mobile phone, computer,tablet for iPad, PS4 game console, XBOX game console, and any game platform. Small and convenient to carry, plug and play, very easy to use, and no need to install any driver. The voice changer is used for making calls and entertainment with friends, voice change of online games, etc. 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. Specifications: Type: Voice Changer Battery: 300mAh Working Time: about 3-4 hours Signal to noise ratio: 106dB Dynamic range: 106dB Charging Input: DV5V 1A Colour:black Material: ABS Size: 3.1 x 1.4 x 0.4 inch Package Contents: 2 * Mini Voice Changer 2 * Audio Cable 2 * USB 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.