Wireless  on  ear  headphones  with  mic,  Adjustable  earshells  and  headband  for  optimal  comfort,  Remote  control  for  handsfree  calls  and  music,  32mm  speaker  drivers,  Big,  bold  bass  you  can  feel,  Great  sound  isolation,  Bluetooth  wireless  technology,  Sound:  Acoustic  system:  Closed,  Magnet  type:  Neodymium,  Frequency  response:  9  -  21  000  Hz,  Impedance:  32  ohm,  Speaker  diameter:  32  mm,  Maximum  power  input:  40  mW,  Sensitivity:  103  dB,  Type:  dynamic,  Connectivity:  Built-in  microphone,  Bluetooth  profiles:  A2DP,  AVRCP,  HFP,  HSP,  Bluetooth  version:  4.1,  Maximum  range:  Up  to  10  m,  Volume  control,  Call  management:  Answer  /  End  call,  Microphone  mute,  Reject  call,  Switch  between  call  and  music,  Accessories:  USB  cable,  Power:  Battery  type:  Li-Polymer,  Standby  time:  166  hrs,  Talk  time:  12  hr,  Music  playtime:  12  hr,  Product  dimensions  (W  x  H  x  D):  13.5  x  18.5  x  4  cm,  Weight:  0.132  kg