Συναγερμός Ποδηλάτου με χειριστήριο

-Easy to install and operate.
-Good material,more durable.
-Press the red A button to arm the defense, it will beep once; press the gray B button to cancel the anti-theft, it will beep twice
-Super loud, simple operation, easy anti-theft
-Leave the bike for a short time and no longer have to bother to lock it
-Anti-theft, no worries, protect your bike