Our products are designed and developed for home improvement and under DIY concept. The products are suitable for windows size with width from 0.5M to 2.0M(CL-338TG2M). Customers can install the products according to instruction manual easily. It is not necessary to find an expert for the installation. The package is designed for DIY store, it is very convenience for the customers to bring it home from the store. Compare with similar products in the market, our price is much lower than others but also has safe, reliable and good quality. The remote control can operate 8 units without interference to each other. Since our product is not complicate to install and operate, the price is acceptable but not high.We believe there is room for the product in the market and it will become a popular product in the coming future.