8 Modes Battery Operated Wireless Fireworks Professional 4 Channel Firing System for Christmas Party Decoration

[Fully programmable]Make any or all receivers to any button on any system remote. If you want to programmer the receiver, please put in a small stick on the hole which is on the receiver box. And then the light on the receiver box will be flash then press corresponding key on the remote,then the receiver will work with the remote. [Power Source]6V requires only 4 AA batteries per receiver. [Range:150meters]Each receiver with the antenna. [Expandable]Add other receivers (available individually) to expand number of cues. [Interchangeable & Economical]If one receiver has a little problem after used for a period, you could use others instead. Or you just need to buy the receiver, no need to buy the remote., Weight: 0.6 Pounds, Manufacturer: Walfront