An amazingly easy to use lock with APP Control! Just lock and unlock your bike or motorcycle with your mobile phone (Android 4.3 and iPhone4s above systems) Keyless entry for enhanced security, no keys to lose or forget. Powerful anti-theft smart cable lock : Anti cutting ,Anti disassembling, Removing alarm ,Vibration alarm ,you could know all the condition on your phone Durable and safe : IP44 rating waterproof function , up to 110dB alarm sound . Product Specification Size: 92X55X34mm(3.62X2.17X1.34) * Material: ABSplastic+copper+cable（chain） * Power: 3 “AAA” size alkaline batteries * Cable（Chain）specification: length 80cm * Working temperature: -10℃~+60℃ * Storage temperature: -20℃~+80℃ * Product weight: 230g Protect Function APP Control! Supports Android 4.3 and iPhone4s above systems. • Anti cutting function: Cutting cable activates alarm immediately. • Anti disassembling function: Removing the battery cover activates alarm immediately. • Vibration function: Vibrating or emoving the unit activates alarm for 30 seconds. • Waterproof function: IP44 rating approved. • Alarm sound: Up to 110dB Packing size SIZE:202*273*55MM weight:329g Note : The package doesn't include the battery.