When I first heard of the three-proof mobile phone, I was still thinking, is it for the younger sisters in the school to prevent fire and theft? After knowing it, I know that there are such brands that will specialize in producing this type of mobile phone. It is mainly used by users who love outdoor sports or have special needs. It has a slight dustproof, waterproof and shockproof function, which is ignorant. The three-proof grade has three standards: primary IP56, intermediate IP57, and advanced IP68. Outdoor sports and military rugged mobile phones should meet advanced standards and can be used in harsh environments. The audience is still quite small, but with the rise of outdoor outdoor sports in China in recent years, three-proof mobile phones have gradually become well-known and recognized by consumers. There have also been many stylish three-proof feature phones with low level requirements, mainly waterproof. . CONQUEST has a large influence in the industry, and only more professional people in China know this brand. The mobile phone has excellent three-proof features, but the relative price is slightly more expensive than the mainstream mobile phone with the same configuration. It is not recommended if you are not a professional industry worker. CONQUEST S12, this red classic version, is waterproof and dustproof to reach IP68 level, a large battery of 8000mAh, powerful standby, support for four-mode positioning, very suitable for outdoor workers or adventure lovers. CONQUEST is an old domestic brand, and its mobile phones are very suitable for people who need mobile phone protection, such as construction workers and mechanical maintenance workers. I don't know if my friends have noticed that there is a CONQUEST mobile phone in the movie "Red Sea Action".