Stay connected with the Multifunctional Wireless Smart Ring Ceramic smart ring allows you to easily and seamlessly interact with mobile phones Can interact with mobile phones to realise social sharing Can act as a wireless USB flash drive smart home linkage along with other special functions 2 built-in energy stones that regulate human electro-magnetic fields Durable; ring is scratch-resitant water-resistant and dust resistant 3 sizes – small medium or large See images for sizes Save 40% with the Multifunctional Wireless Smart Ring for 29.99 pounds