Features:
-100% brand new and high quality
- 4 digital code, only the user can unlock.
- Adopt micro-computer technique , have High - Middle-Lower sensitivity choose.
- Quiver trigged, security and sensitivity .
- Low power consumption to allow the battery a long life .
- Easy to installation and DIY
-After parking the bicycles, press "B" for 2 seconds, you will hear 1 beep if successful and it will armed 5 seconds after the beep.
- When triggered the alarm will sound 5 times and if it is triggered again within 5 seconds it will sound for 15 seconds continuously.

Specifications:
-Color: Black
-Power: 6F22 9 V battery * 1( include)
-Alarm decibel : more than 105db

Package includes:
-1 x Bicycle alarm