Smart Cube is a bluetooth locking device for protecting just about anything you like. Attach this small1.25 X 1.25” cube (via special 3M tape) to any cupboard, cabinet , drawer, etc. and sync with the Smart Armor app. Now your iOS or Android phone is the key. The company says the battery lasts 1-2 years. There are status indicator light panels on both sides to let you know when battery levels are low. Smart Cube can be accessed from any smartphone, computer or tablet that has an access code. You can unlock a Smart Cube from your phone to give someone access to something in your home, or where you have one installed. You can also set your smart device so a Smart Cube will unlock as you approach it. It's on indiegogo now (as of 12/7/16) where you can get one for around $40 or so depending on how many you buy and what offers are still open. But they told me the full retail should be in the $89 to $99 range. That sounds a bit high to me unless you have something valuable you really need to protect, but still want to have the ability to unlock from afar.
Company video: https://www.youtube.com/watch?v=6IxA-0iSbjY
Company website: http://www.smartarmortech.com/
See or hear this show: www.gizwiz.tv/episode/1600 (Goes live late Friday 12/9/16)