Product Name China and Hong Kong 7 Days Data SIM. SIM Type 3 in 1SIM Card .Nano.Micro.Standard. Validity Period The SIM card is valid for 7 days from the date of activation. Please activate the SIM by 31.12.2018. Coverage Hong Kong and 31 Provinces in Mainland China. Data Service Supports tethering and shares network with other connected devices. Customer Service Email hk gpd cucs@chinaunicom.cn Tel 2122 1188 .HongKong.130 6840 0177 .Mainland China. Designated Operator Mainland China China Unicom. Please Read Before Use Once insert into the mobile device,the SIM card will be activated. You can activate the SIM in Hong Kong and Mainland China. You will receive a 11 digit phone number enabled SIM card .Phone number can only be used to check the data amount only and not be used for calls only.