Brand new and high quality. This voice changer has different sound changes. Perfect for callings and entertainment with friend, voice change for online game, etc. It is a must-have device.First, you need to use the adapter included in the package to connect your phone or other devices. Second, use the other side of the adapter to connect the top of voice changer. Finally, use a headset to connect to the bottom of voice changer. Make sure to insert the plugs deep into the hole. So that voice charger can work.This sound effect device can be used on any , computer, tablet.Voice changer is very small, easy to carry, plug-and-play. Very easy to use, no need to install any driver.The interface of this voice converter is 3.5mm type.It can be used directly on your favorite earplugs and headphones.Type:With HeadphonesSignal to noise ratio:106dbinterface:3.5mmCharging input:DV5V-0.5AHeadset interface:3.5mmcapacity:3.7WHCharging interface:USBCCharging :0.5-1haging:3-4hColour:BlackMaterial:absSize:.52x50x17mm/2x1.96x0.67inchesPackage Contents:1 * Voice Changer1 * USB Cable1 * Audio Cable1 * Headphones (The color of the headphones is random and cannot be specified)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.