Features:
100% brand new and high quality.
Let life more simple, take you into the smart life.
Bring you into the smart life, perfect support for android and WP mobile phones.
Screen Unlock: Set The Smart Ring As The Way To Unlock The Screen Of Mobile Phone.
Program Lock:Contact The Mobile Phone With Smart Ring To Run The Program, Your Mobile Phone Only Opens For You.

Specifications:
Material: Titanium Steel
Wireless distance: 1.5cm
Waterproof: IP68
Frequency: 13.56MHZ
Technology: NFC
Color: white, black
Size: #7, #8, #9, #10, #11
Size Diameter Circumference
#7 17mm 53.4mm
#8 18mm 56.5mm
#9 19mm 59.6mm
#10 20mm 62.8mm
#11 21mm 65.9mm
Package size: 5*5*5cm

Package Contents:
1 x NFC Smart Ring

Notes:
1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
2.Please allow slight deviation for the measurement data.