GSM One Key Alarm Syst
T2 GSM SOS emergency H
T3/T4 GSM 3G Senior He
IOS/Android APP SOS Ca
K1 Elder/Senior Wirele
Contact：Ray Zhang
Phone：+86-18675502646
Email：security@wayhang.com
Add：3/F, Bldg. A, No. 3, East Area,Shangxue Technology Industrial City, Bantian St., Longgang District, Shenzhen, Guangdong, China
Mr Zhang
Ray