- Children's sensitive ears are protected by a volume limitation to max. 85 dB according to EN 71-1 standard ,- Gold-plated plug with low contact resistance for secure signal transmission ,- Foam earpads for a comfortable fit - Connection: 3.5 mm Jack Plug ,- Design: On-Ear ,- Material: Plastic Material ,- Model: Stereo ,- Sensitivity: 85 dB/ mW ,- Volume Control: No ,- Cable Length: 1.2 m ,- Speaker Diameter: 30 ,- Frequency Range: 20 Hz - 20 kHz ,- Impedance: 32 Ω ,- Colour: Black/Green ,- Line: Kids ,- Recommended Use: For Children/Mobile Music 2 years legal warranty only