Size Name:Size 11 (66 mm)  |  Colour Name:Black Jakcom R3F Smart NFC Multifunctional Ring 2016 for Android and Windows PhonesThe smart magic ring is a wearable gadgets components, runs magic functions on mobile phone, and operate the mobile function and share the data by NFC wireless frequency communication technology. Health module- Volcanic Magnet (Cotopaxi volcanic magmatic rock): soothing the nerves, calming the liver, improving ears and eyes and releaving asthma- FIR Energy Stone (release more pure Far infrared ray, Scarlar Energy and negative ions): improves energy, endurance and strength, resist the electromagnetic wave from computer, phone, etc. Smart Ring Functions- Private Note- Mobile Phone Lock- Quick Start- Whisper- Magic business card - Link sharing- Network disk sharing- The key of Intelligent door- Screen unlockSmart Ring Details- Black: Amorphous Titanium Annoy (strong, anti-corrusion, silver, non-darkening, allergen-free- White: 18K Rose Gold (resistence against transformation or scratch)- Epoxy Crystal Ceramic- Two High Speed NFC Dual-core Chips- IP68 professional standard: Dustproof/waterproof/anti-fall- Real jewelry-level dimension: Thickness only 1.8mm- Thickness only 7.9mm- Production exhibition: Most stylish wearable accessory for mobile phones.- Product package: Well-made environmental designSpecificationCompatible with Android and WP mobile phones. All the Android and WP mobile phones with NFC function can normally apply it. Our Smart ring only supports the Android and WP mobile phones with NFC function.Size measurementVarious sizes are available.1. In measurement, it is better to wind the finger to be worn with a fine rope or thread (non-flexible).2. Try to tighten the rope lest the size is too large for the finger. It is better to keep the error within 1mm.3. Straighten the rope and measure the length with ruler.
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