With KDM’s KM-750H wireless headphones listen to hi-fi stereo music with precision bass. Comes in four exciting colours black, blue, red and white. Which colour are you choosing? Wireless Version : V5.1 Model Number : KM-750H Impedance : 32Ω Frequency Response : 20Hz-20KHz Music Time : 10Hours Talking Time : 12Hours Standby Time : 210 Hours Charging Time : 1.2Hours Battery : 3.7V 210mAh Colors : Black, Blue, Light Green, Red, White