You can use TRÅDFRI products with Amazon Alexa if you have a TRÅDFRI gateway (for market and language availability, please refer to Amazon support). Follow the instructions in the integrations menu in the IKEA Home smart app, which means to first enable the Amazon Alexa integration in the IKEA Home smart app and then enable the TRÅDFRI skill in the Amazon Alexa app. If you experience issues, try disabling the integration in both IKEA Home smart app and Amazon Alexa app and then enabling it again, first in IKEA Home smart app and then in Amazon Alexa app.