1. Easy installation. Your curtain butler can easily realize the intelligent lifting of the curtain by installing the curtain beads into the smart curtain butler. It is ready to use, and you can say goodbye to the hand-pulling curtain and free your hands. 2. To raise and lower the curtain, tell your butler, just one sentence, help you control the lifting and lowering of the curtain and adjust the lifting ratio of the curtain. 3. Mobile phone control, more precise control of light, through the mobile phone App operation, even if you are away from home, you can adjust the lifting and lowering of the curtain anytime and anywhere to let the light in . 4. The rhythm of life starts from the light entering your room. When you go out, the curtain automatically lowers to prevent the room from being exposed to the sun; when you go home, the curtain rises for ventilation, and the home is new. 5. The dynamic sensor sense the movement of the human body, capture the person , and automatically open the curtain , saving you of opening the curtain. When you need to find something and are troubled by the light, it automatically solve it . Product name:Smart bead motor Product model:ZM85EL-1 (MT-W) Operating temperature:-10-45 Rated power:5V 1A Remote control power supply:2xAAA batteries (not included in delivery) Operating humidity: 95percent RH non-condensing Supported system: for Android 5.0 or iOS 12.0 and above Due to different batches, there may be differences in product appearance and printed text, which not affect use. Colour:White Material:PC Package Contents: 1 * Curtain Companion 1 * Remote Control(without 2 x AAA batteries) 1 * Type-C USB Power Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.