Lightweight, foldable and adjustable in size. 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. Completely kids safe with built in noise limiter to 85db, so perfect protection for young ears; Compatible with all audio and video players with headphones jack output. Leather imitation ear pieces. 1.5m cord length. Jack output cord. Separate volume control. Adjustable headband. 3.5mm jack . 40mm driver. (not included). Manufacturers 2 year guarantee.