Functions40mm drivers and a sound signature that can be found in the most famous venues all aroundthe world.24 Hours Battery Life | 2 Hours Recharging Time.A quick 15-minute charge lets you extend the fun for an additional 2 hours.Stay in touch with your world by managing calls with the buttons on the ear-cup. When thebattery is flat, just plug-in the audio cable and continue listening and chatting.Comfort-fit fabric headband.Detachable cable with remote & microphone.