JBL Everest 300 is legendary sound set free. Bluetooth 4.1 enables wireless connectivity, JBL Pro Audio Sound delivers a dynamic listening experience, and sculpted ear cushions allow for unprecedented fit, and comfort on your ears. With a rechargeable battery offering 20 hours of performance and ShareMe 2.0 to wirelessly share music, videos and games, now you can dance alone or with a partner, free from limits. A built-in microphone also allows for easy call access. Connect to any Bluetooth-enabled device for amazing sound quality without the hassle of wires. Enjoy the same elevated experience and incredible sound JBL has been delivering to concert halls, studios and living rooms for almost 70 years. These headphones are ergonomically designed to fit the unique contour of your ears. You'll experience unprecedented comfort. Listen longer and enjoy it more. Color: Red.SpecsDevice CompatibilityBluetooth YesGeneral SpecificationsSensitivity 100dB/1kHz, 1mWFrequency Response 10-22kHzAudio SpecificationsSensitivity 100dB/1kHz, 1mWFrequency Response 10-22kHzSpeaker SpecificationsDriver 40mmDimensionsWeight (g) 245