Features: 1100m Range: No viewing distance required for proper operation. The Roller Shutter Control Retrofit Kit makes it quick and easy to implement cost effective radio control for your roller shutter drives, whether retrofitted or newly installed. With this kit, roller blinds and awnings can be upgraded so that they can be operated comfortably via remote control. Wireless Roller Shutter Control Retrofit Kit: With the help of a remote control, hard-to-reach roller shutters can be controlled wirelessly from the couch. Provides comfort and assistance to the sick and physically impaired. You can place the remote control in any convenient place or store it on the included wall bracket. RF: 433 MHz, self-learning program for high security. You can use up to 20 roller shutter controls to control different devices in the same room without interfering with the radio channel. RF Remote Control: The remote control is easy to use and simple to learn. The factory has pre-programmed the remote control function to the receiver. The receiver fits any standard flush mount box. The receiver connects to the power source, switch, and motor, and then operates with the remote control. Applicable Equipment: Wireless roller shutter switch retrofit kit to easily switch and control motors for roller shades, blinds, awnings, and sun protection. Specification: Item Type: Wireless Roller Shutter Control Retrofit Set Product Material: ABS Weight: 99g / 3.49oz Battery Type: Remote Control Built-in Dry Batteries (Remote Control Ships with Built-in Dry Batteries) Battery Model: 23A12V Battery Capacity: 60mAh Voltage: 100-240V Remote Control Size: Approx. 11x3.5x1.5cm / 4.3x1.4x0.6in Receiver Size: Approx. 5x4.5x2.5cm / 2.0x1.8x1.0in Package List: 1 x Remote Control 1 x Receiver 1 x English Manual