ITEM NAME:Anti-theft Sound Loud Electronic Security Bike MTB Bicycle Steal Lock Alarm #gib Store Home Promotion Hot Item Add to Fav.Quiver trigged, security and sensitivity. Fit for: Bicycle motorcycle. Relieve alarm. Input your 4 digital code then you will hear a " DiDiDi" sound if correct. If input wrong code, you will hear a long "Di" sound.
