Hum 800 Wired Active Noise Cancelling

Hear only what you want. The Hum 800 are exactly what you need in a noise cancelling headphone. We made them with 97.5% ambient noise reduction, 20 hours of battery life, mic and track control, and most importantly, super comfy total ear coverage. So you can listen all day in total comfort with clear sound and no distractions! FEATURES:97.5% Ambient Noise ReductionActive Noise CancellingTotal Ear CoverageFolds FlatCollapsibleRechargeable BatteryTriple Battery ProtectionHigh FidelityEnhanced BassFlat CordContinue listening to your music even if the Noise Cancelling battery dies. SPECIFICATIONS:Driver: 40mm NeodymiumSensitivity: 103dBFrequency: 20-20,000HzImpedance: 35 Ohms (ANC off) / 100 Ohms (ANC on)Cord Length: 4ftBattery Life: 20 HoursCharge Time: 2 Hours IN THE BOX:Hum 800 Full-Size Noise Cancelling Wired HeadphoneMicro USB to USB Charging CordInstruction Booklet