The spider red JBL JR300 are volume-limited, on-ear headphones designed to provide full-range audio reproduction at safe levels for children of all ages. Their 32mm dynamic drivers yield a 20 Hz to 20 kHz frequency response and will never exceed 85 dB SPL. The single-sided flat headphone cable is terminated with an 1/8" mini-jack for compatibility with most computers, tablets, and mobile devices. The custom-designed earcups and headband offer comfort for short- or long-duration wearing. Being lightweight and foldable, they easily stow away in a backpack or satchel. The JR300 headphones ship with a set of stickers for visual flair and personalization.