Ring body material: 316L surgical stainless steel (allergy free) Light source: 144 energy safe ultrathin mono-color LED Light color: blue or orange LED (optional) Lighting time: 1 minute time display after the ring rotation Battery specs: 6mAh, ultrathin rechargeable lithium polymer battery Running time: 1 week with normal use (15 times activation per days) or 2 hours constant use. Battery lifetime: 3 years (battery is not replaceable) Charger: Qi wireless power charger pad (with universal 110-240 AC DC USB charger) Charging time: max. 2 hours Time setting: by the setting buttons on the Qi charger pad Water-resistant |
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