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One of the accessories of RingLock is an electronic alarm. It is the combination of an electronic bell and a lock. It is useful and convenient.
RingLock is charged by vibration, and it saves the electricity in the built-in battery.
Just push RingLock easily when riding, and it will warn the people in front of you.
Meanwhile, if RingLock is damaged by impact, it will ring very loudly to scare the thieves away.
Lin-Hua Xie (謝姈樺）