Unicorn Headphones are unique and adorable while having amazing sound. They feature volume control and microphone. Speaker Impedance: 32ohm±15% | Speaker Sensitivity: 108dB±3dB | Frequency Response: 20-20,000Hz | Speaker Diameter: 30mm | Cord length: 4 feet (1.25 meters). Overall measures 6.5" x 2.25" x 7.5". Recommended for ages 3 and up.