Laser infrared medium speed ball, zoom and variable light synchronization, three sets of control mode, Chinese English control menu, all metal structure, 4 cruise tracks, 128 preset bits, track self learning function, horizontal 360°/s, vertical 90°/s, built-in three layers lightning protection, testing 4000V, infrared distance 150m. Kä ye looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n looi bɛ̈n