J&R Technology Ltd yog ib qho ntawm Tuam Tshoj dual khawm voip xov tooj thaum muaj xwm ceev lub xov tooj thiab cov chaw muag khoom nrog ib qho ntawm cov nto moo, peb kuj muaj peb lub Hoobkas, peb yog cov tuam txhab tshaj lij thiab tuaj yeem muab koj zoo tshaj plaws dual khawm voip xov tooj thaum muaj xwm ceev khoom. Txais tos mus yuav cov khoom lag luam zoo los ntawm peb.