Bluetooth Smart Bike Lock Waterproof Anti Theft Password Lock Stainless Steel Chain Security Alarm for Bicycle Cycling

Bike lock with vibration-activated alarm, effectively deterring thieves with a 115dB loud alarm. Note: The alarm only goes off when disconnected from the app (when your phone is far from the lock or Bluetooth is disconnected), avoiding noise disturbance within a safe range. Suitable for bikes, motorcycles, vehicles, doors, windows, gates, and other items you wish to protect.• Vibrating or moving the lock triggers the alarm• Cutting the cable or removing the battery cover activates the alarm• IP55 Waterproof rating• Shareable ekey with family and friends• Control via mobile app• Compatible with iOS 7.0 and Android 6.0 or above• Wireless version: 4.0• 115dB anti-theft alarm• Password can be reset• Cable length: 80cm• Power: 3 AAA alkaline batteries (not included)