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OCT600-SG A2

User-friendly service

More user-friendly service  Voice reminding of speed limitation device Speed limitation is an effective way to fix speeding issue.  However, sudden speed control may bring dangers to the car and drivers. Reminding is a kind of solution, driver can hear sound reminding,  but for common speed governor, this feature works so unfriendly. It connects with a siren. When speed limit starts, a siren will make a loud sound. A
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