J&R Technology Ltd yog ib qho ntawm Tuam Tshoj huab cua tshaj tawm xov tooj cua nrog beacon manufacturers 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 huab cua tshaj tawm xov tooj nrog beacon khoom. Txais tos mus yuav cov khoom lag luam zoo los ntawm peb.