1. Smart lock can lock luggage ,bicycles ,motorcycle and door  . When anyone cut the chain or break the lock detected vibration ,lock will active high piercing alarm.

2. Prevention of burglary ,clipping or vibration

3. Alarm sound up to 110dB

4.Cable (Chain) diameter:10mm

5. waterproof:IP44

6.supports :iphone4 and above android 4.3 and above smart phone with bluetooth 4.0 version .

More pics and manual :

Rope chain bluetooth lock :

Steel Chain bluetooth lock ;

 How to use this bluetooth lock ?