We get some bad experience with estimote too. They are not mean to sell. For large scale deployment we end up using em micro [1] ones, cheaper, better, stronger and ability to reprogram the beacon OS.<p>[1] <a href="https:&#x2F;&#x2F;www.emdeveloper.com&#x2F;downloads&#x2F;embeacon&#x2F;CoinStandardAdPage.pdf" rel="nofollow">https:&#x2F;&#x2F;www.emdeveloper.com&#x2F;downloads&#x2F;embeacon&#x2F;CoinStandardA...</a>