J&R Technology Ltd yog ib qho ntawm Tuam Tshoj voip roadside emergecny xov tooj chaw tsim tshuaj paus thiab cov muag khoom nrog ib qho ntawm cov npe nrov, peb kuj muaj peb lub Hoobkas, peb yog cov tuam txhab tshaj lij thiab tuaj yeem muab koj zoo tshaj plaws voip roadside emergecny xov tooj, hauv av xov tooj khoom. Txais tos mus yuav cov khoom lag luam zoo los ntawm peb.