Alotm R3 Smart Ring Waterproof Dust-Proof Fall-Proof for NFC Electronics Mobile Phone Android Smartphone Wearable Magic… Price: $28.99 (as of 08/03/2021 19:01 PST- Details)

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Size: standard US size 7, size 8, size9, size10, size11, size12

Weight: 0.11 lbs 

Technology: NFC 

Material: pure titanium 

Input/Output: NFC 

Waterproof grade: IP68 

Property: waterproof, shockproof and dustproof 

Carrier frequency: 13.5MHZ 

Secret Protection: This Smart Ring can be the KEY of your phone even your house door(13.56mhz frequency door Lock). No need to charge and waterproof.
Control Smartphone: This Smart Ring can Automatic Launch Task of your phone no matter single or multiple. (Call ,Music ,Settings ,Application ,etc)
Health Module: Remove infrared ray and adjust body function by the FIR Energy Stone and the volcano magnet.
Share & Transfer information (send the private message/Picture/business card/ website link to the person you want to share by a simple touch) NOT support iPhone and Blackberry phone.
Standard US size 7, size 8, size9, size10, size11, size12. Support phone models such as Nokia, Sony, Samsung, HTC, MIUI and all other NFC-enabled Android and Windows Phone systems.

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