Need ESL Electronic shelf label demo kit for test

Buy offer Details

I am interested to know more about ESL, to offer to some clients of retail in Colombia.I would like to know more information about the products and costs of different kind of “esl display nfc”, bluetooth gateway and Cloud Software for manage the information. Some questions : -The “esl display nfc” comes in presentation monocromatic (black and white) or also comes in multicolor display support? What is the price of each one?-The Bluetooth gateway how many “esl display nfc” can support? -What kind of battery use the “esl display nfc”?-what is the maximum area of coverage of each gateway?-About the cloud software what is the licensing scheme and the cost?