Wireless earbud technology utilizes Bluetooth technology to transmit audio signals without the need for physical cables. Bluetooth is a wireless communication standard that enables devices to exchange data over short distances using radio waves. In the case of wireless earbuds, a Bluetooth chip inside each earbud serves as a wireless receiver and transmitter.

• When you pair your wireless earbuds with a compatible device such as a smartphone, the Bluetooth chip establishes a connection. Audio signals from the device are then converted into digital data and transmitted as radio waves to the earbuds. The earbuds receive these signals, convert them back into audio, and deliver the sound to your ears through the built-in speakers or drivers.
• Wireless earbuds typically use a master-slave configuration, where one earbud (usually the right one) communicates directly with the paired device, while the other earbud communicates with the master earbud. This enables synchronization and ensures that both earbuds play audio simultaneously.
• To power the wireless earbuds, they are equipped with rechargeable batteries. The batteries provide the necessary energy to operate the Bluetooth chip, drivers, and other components. Additionally, many wireless earbuds come with a charging case that serves as a portable power bank, allowing users to recharge the earbuds on the go.