The Babylo Ear Defenders limit your infant's exposure to loud noise, effectively reducing the risk of hearing damage. Keep your child comfortable and help protect their hearing during loud events or in noisy settings.The Babylo Ear Defender has a specially designed soft headband that's anti-slip, comfortable and easily adjustable, and won't add any pressure to your baby's head. They also feature a safe and practical design, with no hard parts. The ear caps are made with multiple layers of noise-reducing foam and soft padding for good closure.