Before Ma Yun’s unmanned supermarkets appeared, Shenzhen’s first 24-hour smart store, “Sunstore”, which features facial recognition and unmanned money collecting, was open to the public in Bantian Winlead Smart Park. Through facial recognition, people can quickly unlock and enter the store and make self-service purchases by scanning QR codes with a mobile phone in about 30 seconds. Every product has a special “identity”- the product anti-forgery enquiry system to guarantee quality.