Zigbee can't connect with device and APP directly, need a hub, like BOND works as bridge.Alex motor can be controlled via Alexa and does not require a hub. But there are only specific echo devices that will work with it, so be sure to check that you have the appropriate device. Devices are listed in the description. with Echo Show(2.gen), Echo Plus(2.gen), Echo Studio, Echo Show 10 (3.gen), Echo (4.gen) directly. For other Alexa devices, you need to buy a hub like BOND to help your blinds connected to Alexa.