If increase the remote control device, national anthem,  sound:

In addition to its main function is identical with the above, the time is subject to additional equipment: PLC LCD microcomputer control box one set(including the national anthem chip), a step electric lift, 40W Outdoor Audio 2 sets, an amplifier,  2 remote control device, a safety device, this device wholesale price 6800 yuan(996USD) / set.  This microcomputer-controlled electric cordless flag in the ceremony, the national flag rise and national anthem playing simultaneously, all done automatically by a computer-controlled, error ≤ 0.01 second.