ROCKBROS NFC Smart Bike U Lock

Feature Description Weight 564g Material Silicone + Aluminum Alloy Anti-Theft Design Reinforced U-lock resists cutting, prying, and pulling Universal Fit Compatible with road, mountain, and folding bikes Smart NFC Unlock Tap to unlock with phone or NFC card/sticker Quick Unlock One-touch unlock, no keys needed daily Frame Protection Silicone cover prevents scratches and absorbs impact Long Battery Life 600mAh battery, up to 1500 unlocks per charge Type-C Charging Fast charging with dustproof port