Features: 1.The Voice Changer has 7 different sound changes, Man to woman, Woman to man, Little girl, Baby, etc. 2.Very small, convenient to carry, plug and play. Very easy to use,and no need to install any driver. 3.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. 4.The voice changer is used for making calls and entertainment with friends,voice change of online games, etc. It is a must-have device. 5.Makes your voice more beautiful. Support computer, mobile phone, tablet can be used. Specifications: Signal to noise ratio: 106dB Dynamic range: 106dB Battery capacity: 300mA/3.7V Charging input: DV5V/1A Battery effectiveness: about 3-4 hours at full charge Package Includes: 1 x Voice Changer 1 x Audio cable 1 x Charging cable 1 x User manual Package List: 1 x Voice Changer 1 x Audio cable 1 x Charging cable 1 x User manual