Features: l Made of high quality material, durable and practical l Easy to install, no complicated process required l High-quality accessories provide you with a great experience when using Pico 4 l The fan set can dissipate heat and circulate the air in the host to achieve summer ventilation and heat dissipation, and remove lens fogging in winter l The type with fan has a battery that can be recharged, making it more convenient to use Specification: l Material: ABS+Foam l Types (Optional): Gray White, Black, Gray White+Fan, Black+Fan l Applicable Model: for Pico 4 l Quantity: 1 PCS Package: l 1x Face Cover Or l 1x Face Cover, 1x Fan