Specification:Frequency: 13.56MHZRange to cover: 1.5cmWork temperature: -50~+80��IP68 Class waterproof/dustproof/drop resistance.For Android/Window phones.50M waterproof，6th class dustproof，5M drop resistanceMain FunctionPrivate Note: Save all kind of private information to this Smart Ring ，For example ，Schedule，Accounts，Memo ，etc. And set the Ring Touch action to be the only way of View or Edit.Mobile phone lock: Set screen lock and APP lock randomly and let ring become the only key to your privacy.Quick start: Quick start multi-function scene mode， release the hands with high efficiency.Whisper: The product is the first device in the world which can add 6 images and 2000 characters to a piece of NFC codeword. enables �� delete after reading ��function ， and is compatible with all Android and WP mobile phones. Magic business card: The first NFC device in the world which can share IMAGE and TEXT card information， is compatible with Android and WP mobile phones.Link sharing: User can edit URL links and import to Smart ring， or by explorer sharing function. Afterwards ， wherever user contacts the mobile phones with NFC function， the mobile phone will automatically pop out thecontent of shared pages.Network disk sharing: User can click the sharing function of network disk ， select and write in the Smart ring ， and then touch the mobile phone of others. Any or multiple NFC phones will automatically pop out it. The key of Intelligent door: User can set Smart ring as the key to door according to the matching process of intelligent door lock. It supports all NFC door locks ， for example， Samsung series.Screen unlock: User can set Smart ring as the way to unlock the screen of mobile phone， no matter the mobile phone already has other unlocking ways， such as gesture code or password. ( This function is only available in the mobile p-hones whose Android ROM is not highly customized.)Notice: this is the new smart ring which is suitable for cellphone with NFC�� if your cellphone without NFC��Don��t buy it.Read the instruction carefully and observe as following. Wear the magic ring correctly to use (Place of crystal diamond is palm area， the other side of ring is hand back area， keep the crystal diamond in the center of finger， and the correct position of magic ring is the important factor to guarantee the readwrite distance and sending effect) Use the official software to connect the magic ring， the unofficial software may lock the read-write of magic ring， and contact with customer service of WeChat to unlock by return or as the explanation of customer service.Please be informed that the high strength friction of product may scratch the surface pattern and luster.The liquid of acid， alkaline or alcohol may impact on the adhesion structure of product， clean on time in case of unexpected touch please.Do not contact with fire or article and liquid over 80��.Do not disassemble or repair the product by yourself to avoid the interruption of signal receiver， which uses the one time adhesion process. Contact with the customer service of WeChat for any problem of product and change as A/S.Put the magic ring in the original package in case of no operation for a long time in order to avoid the interference in strong magnetic area and loss of data.Do no loss the bar code on the bottom of gift box of product which is the unique data to bind / unbind and A/S， and we suggest to copy it for the reuse.Some NFC receiver on the battery， and some of them on the back case， so confirm the original battery or back case with NFC receiver of mobile before the usage please.Do not place the weight on the product.Do not support IOS.Package: 1* Smart Ring