China SIM Card 2GB 4G data + 100 mins to US or Canada + 50 mins local calls or 100 texts,! Free incoming calls and texts! International roaming service can be activated in China. No contract; GSM/WCDMA/LTE; 3-in-1 (standard, micro and nano) size SIM card fits all phones.Plug and play, no need to top-up; just insert SIM in your phone and it works! No cross-province roaming charge in mainland China, low cost as a local user! Free incoming calls and texts. ACTIVATION PROCESS: Once your order shipped, you will receive a self-registration instruction mail within 2hours via Amazon messaging center. Please use the SIM card in half a year. The activation process won't shorten SIM card validation period, which only starts when you actually use the SIM card! Valid for 90 days from first use! Validation period can be extended by purchasing KEEP-YOUR-NUMBER service at Lvycomdotcom or mychinaunicomdotcom. And be aware that data added via other channels except Lvycomdotcom and mychinaunicomdotcom may not be workable and may even suspend the card.