1. 4-H Cotton Boll and Consumer Jamboree 2015 Headphones

2. Over-Ear Also called full-size Completely cover the ears and create a seal to block ambient noise Heaviest variety Padded headband and ear cups reduce discomfort from weight

3. On-Ear These rest on the ears Comfort varies with ear cup material Typically smaller and lighter than over-ear headphones Have a headband or clips usually

4. In-Ear / Canal Phones Fitted in the ear canal Seal blocks out ambient noise, unsafe for situations that require awareness of surroundings Ear canal plugs made of silicon, rubber, or foam Excellent noise isolation and sound quality Can be custom made and fitted

5. Canal Buds Middle ground between earbuds and in-ear canal Sit just on the inside of your ear instead of deep inside Tend to be more confortable Tend to be less expensive

6. Earbuds Sits in the outer ear Portable and convenient Ambient noise will seep in, listener may turn up the volume to a dangerous level to compensate Least expensive variety Sometimes uncomfortable

7. Specialized Headphones Sports Designed to stay in the ear during intense workouts Water and sweat-resistant Studio Monitoring Used in recording studios Expensive Neutral sound quality

8. Open Vs. Closed

9. Special Features Noise Cancelling Passive noise control Insulating materials (usually foam and artificial leather) block out sounds. Noise Isolation Active noise control (requires power) 1.Incoming ambient sound is picked up by microphone 2.Noise cancellation circuitry inverts sound wave and sends it back to headphone speaker 3.Ambient sound and new waveform cancel each other out.

10. Wireless functionality Most common technology for wireless listening Compatible with most smartphones and computers Compression of audio files from device to headphones means sound quality is affected Listen up to 10 meters (32 ft.) from the transmitter