2E1 Koss Porta Prohear Limited Edition Black Gold Headset Specifications:

• Great for stereo audio listening and gaming
• The Koss Porta Pro Limited Edition Black Gold headset comes with an in-Line microphone, sliding volume control and touch remote control button. The oxygen free copper voice coils and dynamic elements allow the drivers to deliver exceptionally deep bass and a remarkably wide frequency High Fidelity audio response.
• Koss Porta Pro Limited Edition Black Gold Pro drivers are made from oxygen-free copper voice coils and dynamic elements that deliver deep bass high fidelity rated clear sounds. 
• Separate Left and Right drivers arranged in the Flying Echelon staggering inside one ear-cup
• Exceptionally wide frequency responses of 15-25,000 Hz 
• 60 Ohms Impedance
• 101 dB SPL/1mW Sensitivity (The consensus is that exposure to sounds louder than 85 to 90 decibels over an extended period of time can contribute to hearing loss so please always keep your listening volume at a safe level.)
• Large 45 mm drivers delivers accurate (high fidelity) sound reproduction with little distortion and oxygen-free copper voice coils deliver deep bass and signal clarity
• 3.5mm audio plug with built in stress relief for the 3.5' wire. The 3.5 mm audio plug is angled for durability and is compatible with all smartphones, computers, gaming consoles and audio devices that use a 3.5mm output jack
• Made from converted premium Prohear brand ear protectors that provide passive ambient noise blocking, allowing you to hear your audio at lower volumes and prevents sound from leaking out
• Folding padded headband has soft ear cushions and is adjustable to fit most adults and children and comes with a drawstring storage bag
• Hollow ear-cup over the deaf ear is vented for cooling comfort and can be used as a convenient storage compartment for rolling up and storing the cable inside
• Left/Right drivers are arranged in my Left/Right "Flying Echelon" staggering making them ideal for gaming and all stereo audio
• Gel ear pad upgrade available for an additional $20 USD (Message me for upgrade details!)