JAKCOM-R3F EDAL Waterproof Smart Ring for High Speed NFC Electronics Phone with Android and wp Phones Small Magic Ring The fan runs when plugged

The fan runs when plugged to the solar panel

Other Android devices

Pay Attention: Due to system updated

149 countries language supported

only the function as a reference) Blood oxygen &Heart rate

JAKCOM-R3F EDAL Waterproof Smart Ring for High Speed NFC Electronics Phone with Android and wp Phones Small Magic Ring The fan runs when pluggedProduct Features: Products description The Jakcom smart ring is a Wearable electronic components, operate the mobile function and share the data by NFC wireless frequency communication technology. Features: Resistant to water and dust Compatible with Android WP Smartphones with NFC Lock Unlock your NFC devices Share information with other devices Control functions of your Smartphone Tablet , such as following: Private Note ,Screen lock ,APP lock,