Bluetooth
noun [ U ] trademark uk/ˈbluː.tuːθ/ us/ˈbluː.tuːθ/
蓝牙技术（利用无线电信号使手机、电脑等电子设备能彼此互通或实现与互联网的连通）
a system for connecting electronic equipment such as mobile phones, computers, and electronic organizers to each other and to the internet using radio signals