This kind of technology 14 times cheaper than analogues, because one unit will cost about 30 $ , where 16 $ is revenue. Smart Lock "bLock" can work from 30 meters, also connection is guaranteed for any version of the Bluetooth. The bLock application supports the ability to integrate a cloud account, because of this if you loss your smartphone, you be able to enter to your home.
FULL DISCLAIMER OF METAL KEYS
PERSONAL INFORMATION OF THE OWNER IS NOT AVAILABLE
EASY TO USE.
APARTMENT THIEVES HAVE NOT YET LEARNED THIS TECHNOLOGY
MONTH WITHOUT ELECTRICITY.
APARTMENT / HOUSE / SAFE PROTECTED FROM BURIAL.