Ntau cov khaubncaws sab nraud tuaj yeem hloov pauv ntawm qhov xav tau kom tau raws li tus neeg siv lub tswv yim thiab zoo nkauj sib xyaw tsim ntawm qhov chaw.Ib txheej tuaj yeem dai daim tiab ntev, thiab lwm yam, ob txheej txheej tuaj yeem muab tso rau txhua hnub tsim nyog, kev sib hloov dawb thiab ntsiag to, me me hneev taw, thiab tsuas yog tig txheej sab saud kom ua tiav 360 ° kev sib hloov, cov txheej qis tsis tig, ruaj khov los tiv thaiv tilting. , tiv thaiv hauv pem teb.