Wireless earphones are a type of headphones that connect to a device without the use of wires or cables. They use Bluetooth technology to wirelessly transmit audio signals from the device to the earphones. Wireless earphones can have different features such as noise-cancellation, touch controls, and voice assistant integration. They are convenient for those who want to listen to music, make phone calls, or watch videos without the hassle of wires. Wireless earphones are also popular among athletes and fitness enthusiasts as they provide freedom of movement during physical activities.