The 2E1 Pro Ears Bluetooth Headset (with mic) produce hifi stereo sound, enhanced bass response and are compatible with all smartphones. They are made from Koss' legendary KSC35 high fidelity drivers reintroduced as wireless Bluetooth headphones that I rework with my proprietary method to enhance the drivers high fidelity bass performance. The drivers are housed inside the super comfortable and lightweight Pro Ears gel ear padded folding headband. The Koss KSC35s wireless Bluetooth drivers feature dynamic elements for an exceptionally wide frequency response of 15-25,000 Hz. You’ll revel in the high fidelity Bass enhanced sound quality they offer. The Pro Ears folding headsets have comfortable aviation grade gel ear-pads making them the perfect companion headsets for the active single-sided deaf listener on the go. 

The 2E1 Pro Ears Bluetooth Headset creates the perfect portable bass enhanced hifi stereo listening experience in a compact folding headset for the Single Sided Deaf Community! 

• Enhanced high fidelity rated bass response
• Koss KSC35 drivers are made from oxygen-free copper voice coils that improve signal transmission and conduction for cleaner, clearer high fidelity rated sound. 
• Computer-optimized neodymium iron boron magnet Koss KSC35 drivers structures deliver great high fidelity rated sound quality and volume and deliver exceptionally wide frequency responses of 15-25,000 Hz 
• Koss KSC35 drivers arranged in a concave pattern allowing your one ear to hear left and right channels equally (same L/R drivers set up as the 2E1 Audiophile wired headphone model)
• 6+ Hour Lithium Rechargeable Battery
• USB charging cable and Koss embossed carrying pouch for the charging cable included
• In-Line Microphone & Remote (Play/Pause, Start/Stop, Volume, Answer/End, etc.) ideal for smartphone use
• Connect via Bluetooth version 4.2 ideal for all smartphone model pairings
• Headset is made from the Pro Ears compact folding ear protector with aviation grade gel ear cushions and a padded spring steel headband
• One size fits most adults and children 
• Passive ambient noise cancellation allows you to better hear your sounds at lower volume and does not allow sound to leak out
• Can be worn comfortably with eyeglasses, hearing aid devices 
• Hollow ear-cup for the deaf ear is vented for cooling comfort and can be used as a convenient storage compartment for the inline Bluetooth unit 

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.