The Firefly Wireless Firing System allows you to shoot Fireworks or Smoke Grenades from your Phone or Tablet from a distance up to 150 meters! Each System comes complete with 8 One-Meter Firing Clips and 7 Three-Meter Firing Clips (additional 3m & 5m Clips sold separately). 8 x 'D' Batteries not included. Download the Firefly App for Android or Apple now: