1. Practicality: Cov ntxaib -tis expandable vaj tse boasts zoo heev practicality. Nyob rau hauv nws lub xeev folded, lub tsev nyob occupies tsawg qhov chaw, yooj yim rau kev thauj mus los thiab cia. Thaum nthuav tawm, nws muab qhov chaw nyob ua tiav kom tau raws li cov neeg xav tau. Qhov kev hloov pauv no tso cai rau tus ntxaib -tis folding mobile lub tsev ua haujlwm tau zoo hauv ntau yam xwm txheej, xws li kev ncig tebchaws, kev mus pw hav zoov, thiab tom qab-kev puas tsuaj rov tsim kho.
2. Kev xa tawm sai: Cov ntxaib - tis nthuav dav vaj tsev muaj qhov zoo ntawm kev xa tawm sai. Tom qab muaj kev puas tsuaj, ntxaib- tis lub vaj tse uas nthuav dav tuaj yeem xa mus sai sai rau hauv qhov chaw nyob ib ntus, muab chaw nyob nyab xeeb rau cov neeg raug kev puas tsuaj thiab ua kom lawv cov kev xav tau yooj yim. Lub peev xwm xa tawm sai sai no yog qhov tseem ceeb tshwj xeeb hauv cov xwm txheej kub ntxhov.
