1.Adopted the strengthen steel wire synchronous belt to drive

2.Electronic limit switch，can free to run or stop and alter the running direction

3.Built-in receiver box, no external receiver

4.Timing function, everyday can be set with 4 different timer for one week cycle .along with the moving range.

5.Be widely used to all straight windows and L-shaped windows of home , office building ,restaurant ,hotel ,hospital ,recreation shop ,etc. left opening ,right opening. and centre opening are available as per necessary.