The liquid has a high total aerobic microbial count. There is a risk of contracting infections as the liquid could be inhaled through aerosol and get in contact with the eyes.

The burning time of the initial fuse may be too long, or a rupture might occur during functioning of some individual flash bangers. If there is a delay in the explosion, users may return to check the product and could get burned by an unexpected explosion or be exposed to a high level of noise due to the short distance. The product does not comply with the requirements of the Pyrotechnics Directive and the relevant European standard EN 15947.

The battery is unstable and does not stay upright during functioning; it is possible that it falls on its side. If that happens, burning projectiles could hit persons, causing burns, or come into contact with flammable material, causing a fire. The product does not comply with the requirements of the Pyrotechnics Directive and the relevant European standard EN 15947.