Somfy Chronis Smart RTS is a wall mounted battery powered switch for controlling any blind using Somfy RTS. Chronis Smart RTS incorporates Somfy’s RTS technology, which eliminates the need for wiring between the control switch and the blind. You are free to install the control point anywhere you want, with no disturbance to décor. Chronis Smart RTS is a 7-day programmable timer giving one up and one down command per day to a blind or several motorized blinds simultaneously.  Cosmic mode to operate blinds in conjunction with sunrise and sunset times. Security mode to simulate presence in the home by bringing forward or delaying the programmed times of operation by up to 15 minutes. Date and time must be set whenever battery is replaced. Dimensions: 80mm x 80mm x 27mm