玉玺长14厘米，宽10厘米，上有6个红色汉字和两条在祥云中嬉戏的蟠龙。
Bearing 6 red Chinese characters with 2 dragons on top, frolicking in the clouds, the seal is 14cm long and 10cm wide.
该控制器能够完成LED显示屏所要显示的字符、汉字、图片的编辑和实现200米以内的数据传送。
The controller can edit and transmit some characters, Chinese characters and pictures of LED display screen within 200 meters.
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