Kid-Safe Volume Limiting – Built-in volume limiter caps sound at 85dB (±3dB), helping protect your child’s hearing during music, videos, or online learning sessions. Removable Audio Driver & Cord – Headphone driver and in-line volume control cord easily detach for safe, machine washing of the fleece headband. Super Soft & Washable Fleece – Cozy, breathable material provides year-round comfort and is fully washable—ideal for everyday use and messy moments. Custom Fit with Velcro Strap – Adjustable elastic Velcro headband ensures a snug fit for toddlers and kids while keeping speakers in place. Universal Device Compatibility – Works with most smartphones, tablets, and MP3 players using a standard 3.5mm jack—Apple, Android, Samsung, and more.