These wireless earphones are designed with a special type of ear hook that securely fits in your ear for an enjoyable listening experience. The earbuds are made of a special material that is durable and resistant to sweat. Features include noise-cancellation, a built-in microphone, and an active noise-cancellation. With a built-in Bluetooth connection, you can wirelessly stream music to your earbuds. Also, the earbuds can be used as a hands-free device, with the built-in microphone.