STYRBAR/STILLBAR Remote control allows you to control up to 10 LED bulbs simultaneously. You can dim, turn on/off, and adjust the color temperature from warm to white. By dimming the lights, you can not only change the mood of the room but also save energy. With the TRADFRI/TRODFRI gateway and the IKEA Home smart app, you can create multiple light source groups and control them individually. The STYRBAR/STILLBAR remote control allows you to wirelessly dim your lights. It operates within a range of up to 10 meters in areas without obstacles such as walls. Batteries are sold separately. Two AAA batteries are required. For use only with IKEA smart lighting products. IKEA Home smart compatible. Designer IKEA of Sweden Everything in the photos is included. Thank you.