Guangzhou NIne Chip CO., LTD

1. product description: 1.It has high volume loudspeaker, covers a wide area; 2. Pair of loudspeakers the stand-alone player, volume is up to 160 db;

1.Product features: (1). Function: limiting speed. (2). Speed range: 10 to 120km/h. (3) .Speed limit deviation: 1km/h. (4). The operating voltage ran

1.Working Theory Yuandun intelligent electronic mice repeller is the high technology R&D product which aims at mice and pest. The product now is combi