• RecallMadness@lemmy.nz
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      3 months ago

      They are also IR controlled. A lot of them have a little window on the front of the unit, and an array of transmitters in the ceiling.

      • Pyro@pawb.social
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        3 months ago

        Probably different models for different sets. The set I work with are purely wifi. They have a light on them to blink is the only extra thing they do

        IR on them does sound stupid though, in a store environment that can be blocked rather easily

    • ChaoticNeutralCzech@feddit.org
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      3 months ago

      In the Czech Republic, BILLA uses them and they respond to the RFID reader on my phone. It’s a different kind though, most have black-white-red displays.