TREDANSEN Blackout cellular shade, smart wireless/battery-operated, white 80x195cm Reduces glare and reflections on TV and computer screens. Connecting this product to the DIRIGERA hub allows for more effective use with the IKEA Home smart app, and operation with other smart products. The blinds are pre-paired with the remote control and signal repeater. To activate the wireless function of the blinds, you need to plug the signal repeater (included in the package) into a power socket within 10 meters of the blinds. Cordless type, safe for small children. The BRAUNIT battery pack powers the FYRTUR and KADRILJ roller blinds. Purchased in March 2023. Used for 1 year and 10 months. No noticeable scratches or stains. The blind batteries will be shipped with the product. Please feel free to contact me if you have any questions. Thank you.