ALARM DISC LOCK

Perfect guard shock sensor: This is a security anti-theft disc brake lock. The alarm disc lock allows you to protect your beloved motorcycle or bicycle when parking outdoors or at home. When any vibration or shock is sensed when the alarm disc is located, it will automatically activate an alarm up to 110db. The forged steel is waterproof, rust-proof and weather-resistant so that it can work normally in rainy days. -No key lock -Waterproof -110db -energy saving