Good-looking noise-cancelers with some nice attributes I find the JBL Everest Elite 750NC headphones very attractive, symmetrical and well put-together. Plus they are loaded with features at this price. Music plays wirelessly from your phone via Bluetooth, and active noise cancellation knocks out the hustle-and-bustle around you. JBL's special circuitry automatically adjusts itself to the external sound. Or you can download their mobile app to manually choose your level of noise canceling. And want some boom for your buck? JBL tuned their always-pleasant sound for powerful, yet focused bass. Product highlights: 40mm dynamic drivers tuned for deep, tightly controlled bass Bluetooth 4.0 connectivity for wireless music listening and phone calls with compatible smartphones active noise-canceling circuitry automatically adjusts to the level of external sound free JBL Headphones app for Apple or Android? lets you adjust the level of cancellation to match your environment TruNote? technology automatically calibrates and personalizes the sound built-in rechargeable battery provides up to 15 hours of music listening with noise cancellation 20 hours of wireless music listening without noise cancellation earcup buttons offer music, volume, and call controls built-in microphone with echo-cancellation for clear, hands-free calls earcups collapse for easy storage sculpted earpads for secure fit and comfort includes miniplug headphone cable for wired listening USB charging cable included zippered carrying case frequency response: 10-22,000 Hz sensitivity: 92 dB weight: 9.9 ounces What's in the box: Over-ear wireless noise-canceling headphones (silver) 48" Audio cable with in-line remote/mic (2.5mm plug on headphone end and angled 3.5mm plug on device end) Airline adapter (female 3.5mm-to-dual male 3.5mm plugs) 40" USB charging cable (Type A USB on one end and Micro-B USB on other end) Hard cable case Zippered hard storage case Quick Start Guide FCC and IC Statement Warranty Card Attention! booklet Download My JBL Headphones App