4 Cue Keychain Fireworks Electronic Firing System .
This 4 cue wireless firing system is perfect for indoor SPFX, or for display items that are far away from the main display. This system has a range of 100M. Receiver requires 4 AA batteries that are not included. Keychain battery is included and installed.
** When using Nicrome Igniters you need to hold the firing button down slightly longer.
