Bluetooth earphones are the application of Bluetooth technology to hands-free earphones, allowing users to easily communicate in various ways without the burden of annoying wires. Since the introduction of Bluetooth earphones, they have been a good tool for mobile commerce professionals to improve efficiency.
Bluetooth laptop is a laptop with Bluetooth wireless communication function. In the 10th century AD, the Nordic lords competed for power, and the Danish king stepped forward. With his unremitting efforts, the bloody war was stopped, and all parties sat at the negotiating table. Through communication, the lords resolved their past grievances and became friends. Due to the Danish king's passion for eating blueberries, his teeth were dyed blue and he was known as the King of Bluetooth. Therefore, Bluetooth has become a synonym for communication. One thousand years later, when new wireless communication standards were introduced, people named it Bluetooth. In 1995, Ericsson first proposed the concept of Bluetooth. The Bluetooth specification operates in the microwave frequency band, with a transmission rate of 1M bytes per second and a maximum transmission distance of 10 meters. By increasing the transmission power, it can reach 100 meters. Bluetooth technology is globally open and has good compatibility worldwide. The world can be connected through low-cost intangible Bluetooth networks.