YAS POB ZEB LAUM YEEB NKAB ZOO XOV TOOJ
1. Cov xov tiv thaiv sab hauv thiab sab nraud yuav tsum muab tus kheej ntsuas phoo thiab tiv thaiv kev vibration thaum lub sijhawm kev thauj mus los.
2. Ua kom nruj thiab tawg ntawm lub zog ntawm tus tiv thaiv yuav tsum yog xam rau qhov yuav tsum ua ntawm peb cov txheej txheem.
Sau koj cov lus ntawm no thiab xa rau peb