The Spider-man headphones are lightweight, foldable and adjustable in size, they can easily be popped into any bag and making them perfect for holidays and trips away. Totally Kids Safe with built in sound limiter to 85dB. Fully compatible and easy to use with all audio and video players with headphones jack output. Features and Benefits Child safe - with sensitivity of 85 dB to protect your hearing. Comfortable and portable - Very light and foldable you can take it everywhere with you. You can adjust the size so that it fits perfectly on your head. Classic Spider-man graphic design - retro styled spider-man inspired by the original Stan Lee comics.  Specifications Handy folding design Adjustable size Frequency response: 20Hz-20kHz Impedance (acoustic resistance): 32 Ohm Compatible with all audio and video players with a headphones jack output. Colour: Red/Blue