。◕◕◕。3 types: Type A is a small box, Type B is a large box, and Type C is a professional waterproof box for outdoor use. Quality material: thanks to the use of impact-resistant ABS and other accessories, the solid and opaque design effectively prevents light penetration. Type A and B: with shock absorbing pad inside, suitable for charging small and miniature electronic devices. It can well protect the internal equipment from stone cuts in the field, and it is waterproof, shockproof and dustproof. 。◕◕◕。Type C: It is a waterproof case that can be competent in any environment in any weather. Specially designed to place and protect precision equipment, instruments or other objects, effectively waterproof and free from external dust or moisture. Use: waterproof, shockproof, dustproof. It is very suitable for outdoor activities, camping and other outdoor exploration activities.