Features: 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 mobile phone, 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. Specifications: Material:ABS Type:Standard Edition/With Headphones Size:Approx.52x50x17mm/2x1.96x0.67inches Signal to noise ratio: 106db Mobile phone interface: 3.5mm Charging input: DV5V-0.5A Headset interface: 3.5mm Battery capacity: 3.7WH Charging interface: USBC Charging time: 0.5-1h Battery aging: 3-4h Package Includes: 1 Set Voice Changer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.