This company does not deliver what it advertises
This company does not deliver what it advertises, clearly a fraudulent criminal activity, which cannot be easily dealt with as the company is based in China registered as Cao County Zhuoke E-commerce Co., Ltd. They advertised a blood checking finger device, but sent a cheap pulse monitor instead, which did not work . On contacting them, they offered a 20% rather than a full refund for the 'inconvenience'. Clearly a company that should be avoided at all costs.