High definition built in microphone</br>Standby time of up to 75 hours?? Continuous usage time up to 8 hours</br>Frequency response: 20HZ-20KHZ?? 40 mm Neodymium Speaker driver and Impedance 32 ohms</br>Rechargeable lithium ion battery 3.7V 300mA?? Charging thru computer USB interface/output DC5V/500mA charge</br></br>Product Description</br></br><p>A Prenium Ear cup iDance FUNKY Headphones that provide the righ