Before buying, please review the product description (each platform functionality suitable table), in conjunction with their mobile phones to purchase the product.
<br />
<br /> (Only support NFC-function  with Andrews phone ,Before buying, please confirm whether you are a mobile phone with NFC-enabled Andrews system phone, otherwise do not buy, thank you!)
<br />
<br />Model: R3F
<br />Color:black,white
<br />Dimensions: standard ring size  7 / 8 / 9 / 10  /11 / 12 (United States Code)
<br />Ring Size(Ring circumference):  7(54mm);  8  (57.1mm) ;  9 (60mm); 10 (62.8mm); 11(66mm); 12 (70mm).
<br />
<br />Tips:
<br />Before buying, please ring the size of the control table, choose their own needs ring size and type of purchase. Thank you!
<br />Product Features:
<br />1. mobile phone screen lock
<br />2. Smart Key (s) (support 13.MHZ smart locks, such as Samsung full range of smart locks)
<br />3. The network disk File Sharing
<br />4. Network link Share
<br />5. Share cloud business card
<br />6.NFC Message transfer
<br />7. Quick Start Program
<br />8. Private memo
<br />9.Life module functions
<br />
<br />Product Weight: 28g
<br />Wearing styles: wearing finger
<br />Applicable system: Andrews
<br />Battery capacity: without electricity
<br />Additional features:
<br />Audio and video entertainment, pedometer, support NFC functionality, health monitoring, cell phone / calls, wireless sharing / sharing information push, privacy protection.
<br />Packing list: Outsourcing folding box, crystal box package, ring master.