Features1Easy, effective and convenient to install 2Effective remote control and alarm sensors 10 meters above the terminal, open area up to 30 meters 3Press the red button to fortify, will beep; press the gray button to cancel the theft, will beep twice 4Vibration induction alarm, after the alarm continued for 20 seconds, super loud 5With a keyring that the remote control can easy to carrySpecificationDescription:Lightweight and compact size to store or carry. Simple to operate andeasy to install. It helps protect your bicycle well, and you don't needto worry about losing it. What are you waiting for?Features:1. Using high sensitivity deployment of the probe, high sensitivity.2. Easy, effective and convenient to install.3. Effective remote control and alarm sensors 10 meters above theterminal, open area up to 30 meters.4. Press the red button to fortify, will beep; press the gray button tocancel the theft, will beep twice.5. Vibration induction alarm, after the alarm continued for 20 seconds,super loud.6. With a keyring that the remote control can easy to carry.Specifications:Material: ABSColor: BlackPackage Weight: approx. 110gBattery: 1 x 9V battery (not included)Package Included:1 x bike code lock4 x screws2 x nuts1 x keyring1 x remote control(with battery)1 x manualNote:The correct installation of this product is waterproof, but not immersedin water.Package List