Suitable for three kinds of rail (U-shape/I-shape/rod), home curtains are applicable Hang and use, ordinary curtains become smart curtains in a second Lightweight and easy to hang, three accessories can be matched with 99% of the curtain track Built-in 4000mAh, curtain machine low-power operation, to solve the charging troubles, 6 months of long companionship Specifications: No.: LY-1672 Product speed: 10m/s Type: Remote control single-open universal (3 in 1) Battery capacity: 4000mAh Voltage: 3.7V Power: 14.8WH Endurance: 6 months Charging time:8 hours Support rail type: rod, U-shape rail, I-shape rail Rod diameter range: 13-38mm U-shape rail: bottom slotted width 0-15mm, bottom ring width 0-5mmm I-shape rail: bottom width of the track 5-40mm, bottom hanging ring width 0-5mm Installation condition: Rod: 1. If your curtains are perforated curtains, the top edge of the curtains to the ceiling needs to be greater than or equal to 40mm, and the shortest distance between neighboring Roman rings is greater than or equal to 95mm, using this product, you need to distribute the curtains evenly first, and then use the hauling rope and fixing clip. 2. If your curtains are hole-hanging curtains, the thickness of the hanging ring should be more than 4m. 3. This product is not suitable for rod curtains. 4. Rod diameter range: 13-38mm. 5. This product is only suitable for the thickness of the same Roman rod, not for telescopic Roman rod and other ends of the Roman rod with differences. U-shape rail: 1. The width of the groove on the low side of the rail is less than or equal to 15mm, the distance from the upper surface of the bottom of the ring to the bottom surface of the rail: 3-32M, the thickness of the ring is not more than 5mm. 2. In addition to straight rail, curtain robot also supports arc type. 3. For shaped rail, in the turn to meet the conditions: from the starting point of the turn to the arc tangent reverse corresponding to the distance from the wall is greater than or equal to 25cm 4. Does not support the profiled track with cornering device I-shape rail: 1. The I-rail needs to ensure that the front is flat, the distance from the upper surface of the bottom of the hook of the ring to the bottom of the rail is 3-32m, and the thickness of the ring is not more than 5rm. 2. In addition to straight rail, curtain robot also supports arc type. 3. For shaped rail, the turn needs to meet the conditions: from the starting point of the turn to the arc tangent reverse corresponding to the distance between the wall being greater than or equal to 25cm 4. Does not support the shaped track with a cornering device. Installation Notes: 1. In order to ensure the installation effect, please wipe the surface of the track before installing the curtain machine. 2. If you want to use a curtain robot to control the curtains on double track curtains at the same time, you need to install the curtain robot for the front and back curtains separately, and the distance between the front and back track edges should be more than or equal to 5mm.If the distance between the front and back track is less than 5mm, the curtains may interfere with each other when they are opened and closed. 3. It is not recommended to install the curtain robot on the track with a long service life, due to the aging of the track or rings, the material is fragile, which may cause the curtains to fall off or fall down. 4. If the height of the curtain itself is too high to cause the curtain fabric dragged to the bottom, in order to ensure that the product experience, please roll up the bottom edge of the curtain, to no longer contact with the bottom surface. 5. In order to ensure the actual effect of the product, please scan the QR code in the manual to watch the product teaching video. Follow the instructions to install and use the product. Package included: 1 x Curtains Opener 1 x Charging Cable 1 x Single Opening Remote Control 1Pair x I-Shaped Accessories 1Pair x U-Shaped Accessories 1Pair x Rod Accessories </li Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia