Pro Ears ReVO Electronic Passive Ear Muffs Skulls. These Pro-Ears ReVO Smaller Heads and Ears Electronic Ear Muffs provide a better fit for children and smaller adults. Everyone's head and ear sizes are different and the Pro-Ears ReVO Smaller Heads & Ears Electronic Earmuffs help fit the bill for smaller heads and ears. After all one size does NOT fit all Specifications for Pro Ears ReVO Electronic Ear Muffs for Smaller Heads and Ears: Manufacturer: Pro Ears NRR: 25 dB Battery Type: N Battery Quantity: 4 Features of Pro-Ears ReVO Electronic Smaller Heads and Ears Ear Muffs: Rugged construction Adjustable headband and Super-Sized ProForm leather ear cushions No metal parts to break and potentially scratch a young child or become a swallow hazard Suitable for a moderate noise environment at the range rock concert or race track Simple height adjustment requires no tools to remain fixed during wear Snap-in ear cushions make replacement quick and easy Very Cool color and pattern options Package Contents: Pro-Ears ReVO Electronic Ear Muffs for Smaller Heads and Ears Pro Ears ER300-SK: ReVO Electronic Passive Ear Muffs Skulls