Kids Bluetooth Headphones with 3 Switchable Volume Limited Levels for Hearing Protection - Adopt exclusive 3-level switchable volume limiter(75dB/85dB/94dB) to protect vulnerable and sensitive ears of kids while give parents a piece of mind, not having to constantly monitor the volume. It effectively protects your little ones from progressive hearing loss in different environments. (75dB/85dB in quiet places or 94dB in noisy surroundings). 2 superior speakers provide crystal clear sound. Noise Isolation Stereo Wireless Bluetooth Headsets- Adjustable headband w/ memory stainless steel strips give the headphones some impressive durability & flexibility. What's more, the extra detachable Nylon fastening straps (Need to buy separately from SIMOLIO brand store) can be added to the headbands to get the perfect fit for the toddlers. Over-ear headphone isolates from outside noise to make you hear clear sound. And we use some nifty engineering to make sure the ear pads won'