Bluetooth-pairing device (140,420,502) comprising: data storage storing a software application; a Bluetooth antenna; an input/output interface; and a microprocessor configured to: receive, via the input/output interface, interaction data associated with the software application; transmit, via the input/output interface, a request for a first unique identifier to a device provider system in response to the received interaction data associated with the software application, wherein the request for the first unique ID is transmitted to the device provider system upon log-in of a customer into an account via a webpage or mobile app on the Bluetooth-pairing device and wherein the request for a first unique ID comprises log-in data indicating a customer account; receive, in response to the transmitted request, the first unique ID associated with the customer account and with a new device; transmit, via the Bluetooth antenna, an advertising packet to the new device (130,200,300,410); receive, via the Bluetooth antenna, a response to the advertising packet comprising a second unique ID from the new device (130,200,300,410); compare the second unique ID with the first unique ID; generate, if the first unique ID and the second unique ID match, a link key, wherein the link key is based on at least a portion of the first or second unique ID; transmit, via the Bluetooth antenna, at least a portion of the link key to the new device (130,200,300,410); and pair the Bluetooth-pairing device (140,420,502) with the new device (130,200,300,410) using at least a portion of the link key. data storage storing a software application; a Bluetooth antenna; an input/output interface; and a microprocessor configured to: receive, via the input/output interface, interaction data associated with the software application; transmit, via the input/output interface, a request for a first unique identifier to a device provider system in response to the received interaction data associated with the software application, wherein the request for the first unique ID is transmitted to the device provider system upon log-in of a customer into an account via a webpage or mobile app on the Bluetooth-pairing device and wherein the request for a first unique ID comprises log-in data indicating a customer account; receive, in response to the transmitted request, the first unique ID associated with the customer account and with a new device; transmit, via the Bluetooth antenna, an advertising packet to the new device (130,200,300,410); receive, via the Bluetooth antenna, a response to the advertising packet comprising a second unique ID from the new device (130,200,300,410); compare the second unique ID with the first unique ID; generate, if the first unique ID and the second unique ID match, a link key, wherein the link key is based on at least a portion of the first or second unique ID; transmit, via the Bluetooth antenna, at least a portion of the link key to the new device (130,200,300,410); and pair the Bluetooth-pairing device (140,420,502) with the new device (130,200,300,410) using at least a portion of the link key. receive, via the input/output interface, interaction data associated with the software application; transmit, via the input/output interface, a request for a first unique identifier to a device provider system in response to the received interaction data associated with the software application, wherein the request for the first unique ID is transmitted to the device provider system upon log-in of a customer into an account via a webpage or mobile app on the Bluetooth-pairing device and wherein the request for a first unique ID comprises log-in data indicating a customer account; receive, in response to the transmitted request, the first unique ID associated with the customer account and with a new device; transmit, via the Bluetooth antenna, an advertising packet to the new device (130,200,300,410); receive, via the Bluetooth antenna, a response to the advertising packet comprising a second unique ID from the new device (130,200,300,410); compare the second unique ID with the first unique ID; generate, if the first unique ID and the second unique ID match, a link key, wherein the link key is based on at least a portion of the first or second unique ID; transmit, via the Bluetooth antenna, at least a portion of the link key to the new device (130,200,300,410); and pair the Bluetooth-pairing device (140,420,502) with the new device (130,200,300,410) using at least a portion of the link key.