This is a bicycle alarm with high sensitivity. When a bike is intended to be stolen, loudly alarm will be issued. This alarm is safe and reliable and comes with a 4-digital-code electronic lock.

• Level for sensitivity adjustment.
• Rechargeable lithium battery.
• 6 month using life (20 alarms/day).
• Easy to charge: never take out the battery.
• Reset key to avoid forget your code: easy to use.
• Alarm sound: 120dB.
• Remote range: 120 meters.
• Frequency: 315/433MHz.
• Power: 3.6V rechargeable lithium battery x 1pc.