Amazing 20 Cues Firing Control Fireworks System Wireless Equipment Upgradeable

Product Overview & Instruction – 20 Channels. This is 20 cues fireworks firing system, 1 transmitter with 4 receivers. This system is expandable. It can be upgraded to 40 cues, 60 cues, 100 cues. The number of display group: up to 100 groups. With a variety of control modes: point control, running control, select the control alone, time settings. Compact design, 4 channels in 1 receiver. Waterproof case, protect the firing system very well. With low battery indicator. With long distance remote. Several machine could connect together. Each channel with a TEST LED. Transmitter: 4 x AA battery. Receiver: 4