Headphone is an electronic device worn on the ears to listen to audio privately.
Common types of headphones include:
1. Over-ear headphones - Enclose the entire ear
2. On-ear headphones - Sit on top of the ears
3. In-ear headphones (earbuds) - Fit inside the ear canal
4. Wireless headphones - Connect via Bluetooth
5. Noise-cancelling headphones - Reduce ambient noise