After numerous requests made to me from single-sided deaf gamers, musicians and audiophiles for a high fidelity headphone incorporating the 2E1 system, I am pleased and thrilled to offer my highly praised 2E1 high fidelity rated headphone models! Put these 2E1 high fidelity rated headphones over you're one ear and you will immediately feel and hear and understand why it is so well received! 

The 2E1 High Fidelity Headphone Models for Gaming and Music Listening

I build both of my 2E1 Pro Ears models (2E1 Pro Ears with gold letters & 2E1 Pro Ears Ultra Gel Folding with platinum letters) by converting the Altus Brand Pro Ears hearing protectors. The Pro Ears (Gold Lettering) model is made with genuine leather visco-elastic foam ear cushions and a leather padded headband and the Pro Ears Ultra Pro Ears model (Platinum Lettering) which is compact and foldable with comfortable, stay cool aviation gel ear cushions and a padded steel spring headband. For both my 2E1 Pro Ears (gold and platinum) models I incorporate the legendary Koss KSC75 high fidelity stereo headphone drivers that I mechanically attach to an acoustic diaphragm that is arranged inside one ear-cup in my unique and innovative Flying Echelon™ staggered drivers configuration for aiding a single-sided deaf person's stereo panning perception.

The "2E1 Pro Ears" (gold lettering):

• Great for stereo audio listening and gaming
  
• "2E1 Pro Ears" model uses Koss KSC75 high fidelity drivers 
•  Made in the USA by Altus Brands, a veteran-owned company
• The "2E1 Pro Ears" (gold lettering) model has comfortable, snug fit, ProForm leather ear seals cushions with internal visco-elastic memory foam
• One size fits most children and adults
• Hollow ear-cup side like all 2E1 headphones for the deaf is is vented to help with ear cooling and can be used as a convenient storage compartment  and can be used as a convenient storage compartment for the audio cable
• Can be worn comfortably with eyeglasses, hearing aid devices 
• Stress relief of the soldered wired connection to the drivers for added wired connection durability is standard on all models
• 60 Ohms Impedance (Headphones with high impedance (25+ ohms, approximately) tend to need more power to deliver higher audio levels. High impedance protects from damage caused by overloading and can also be used with a wider range of audio equipment but may require a headphone amplifier pairing for low voltage devices like portable music players, smartphones & wireless gaming controllers, etc. to achieve optimum audio performance.)
• 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.)
• 15-25,000 Hz frequency response
• Total Harmonic Distortion (THD) 0.2 %
• Koss' computer-optimized neodymium, iron, and boron rare-earth magnet drivers deliver amazing clarity at any volume and offer deep bass performance for an extended frequency response
• 45 mm large titanium element drivers deliver accurate full spectrum sound reproduction with little distortion
• Headphone weight approximately 10 ounces
• Passive ambient noise cancellation allows you to better hear your sounds at lower volume and does not allow sound to leak out
• 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
• Hollow ear-cup for the deaf ear is vented for cooling comfort and can be used as a convenient storage compartment for the approximately 4' long audio cable
• Enjoy greater volume despite low-voltage portable devices 

I can also recommend purchasing my hand-sewn storage bags for your 2E1 headphone and I will refund the storage bag's shipping charges back when purchased at the same time as the 2E1 headphone since it will ship with your 2E1 headphone order.