Apie Wireless Bluetooth Headphones Foldable Noise Cancelling Over-Ear Headset Stereo in-line Microphone Sweatproof Adjustable Portable Bluetooth Headphones Built-in Mic for handsfree functionality - Transmission Distance up to 10 Meters - Omnidirectional microphone that picks up your voice without having to talk directly - Hands free functionality - let you chat using any of actual applications as Skype , Voip Phone Services, Cisco Jabber Ms Lync - let you convert any Smartphone or Bluetooth Device. 3.5 mm AUX line in - Allow music playback from various sources even when not charged. Deluxe carry hard case for easy transportation - Tri-Fold headphone for easy storage - Foldable headphones for easy storage and transport - Passive canceling noise extremely comfortable in your ears and over your head. Up to 8 hours of battery life - 40mm Drivers - Impedance: 32ohm - Frequency Response 20-20.000Hz - Sensibility 106dB+3dB - Polymer Lithium Battery you can control volume - tracks and many more from the easy access - Sensibility buttons located in the Front right of the Headphones. AUX line in allows music playback from various sources even when not charged - you can use any aux line out from any device - or any music player on Cars, Speakers, Cell Phones, Computers, Imac, Macbook Pro, Macbook Air, Surface AND MUCH More.