The products include two remotes (one key remote and four keys remote) and 4 pieces receivers for cold flame. Use 9V dry battery to supply power. The biggest diameter for cold flame is 4.2cm. One key remote controls those four receivers firing together, 4(ABCD) keys remote controls the receivers(ABCD) fire by couple. Remote control receiving distance is about 100m.
Technical Parameter:
Control mode: 4+1 Button Wireless Remote Control
Frequency: 433Mhz
Feature: Cold spark fireworks reusable holder
Material: Plastic base
Remote distance: 70-100 meters
Receiver Power: 9V dry battery for each receiver
Channel: 4
Size: 20*20*8 cm
Weight: 1.2 Kg