This is a ceiling light that doesn't require Wi-Fi and can be controlled by voice. I'm selling it due to moving. You can turn it on by saying "Iris, turn on the light." You can change the color to warm by saying "Iris, warm color." You can adjust the brightness by saying "Iris, dim/brighten." You can turn it off by saying "Iris, turn off the light." Please see the Rakuten page for more details. https://item.rakuten.co.jp/akarie/281102/?s-id=ph_pc_itemname The new price on Rakuten is 9,980 yen. I've used it for about 2 years, so I'm selling it for half price, 5,000 yen. Thank you. *The remote control is included, but the battery cover is missing.