ZJH Smart NFC RFID Ring: Door Access, Manage NFC Android Devices and APPs, Ceramic Smart Smart Wear Ring for Men and Women

الوصف

Product Name: NFC Ceramic RingBattery capacity: non-contact sensing (without battery)Material: CeramicThickness: 3mmFrequency: 13.56MHZ/125KHZWidth: 8mmSize: US code 6# 7#8# 9# 10# 11# 12#Colour: BlackSensing distance: 3-8cmCard reading: non-contactIs it waterproof: waterproofProduct weight: 3.5-4gApplicable people: subway, bus, access control, consumer information management, etc.Applicable system: Android / windows phoneAdditional features: diversified featuresNotes:Due to the difference between different monitors, the pictures may not reflect the actual color of the item.Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement.Please leaving a message before you give the bad feedback, if the products have some problems.Thanks for your understandings.