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. Foldable. Separate volume control. Adjustable headband. 3.5mm jack . 40mm driver. Compatible with universal smartphones. In the box: stereo headphones. Model number: hp010dp. Manufacturers 2 year guarantee. Warning - Not suitable for children under the age of 3 years due to small parts and entanglement hazard. Caution ; To prevent possible hearing damage, do not listen at high volume for long periods.