open the bluetooth,open the bluetooth
connect the ?bluetooth Connect the bluetooth
Bluetooth (?Bluetooth?) is a wireless technology standard that enables short-range data exchange between fixed devices, mobile devices, and in-building personal area networks (using 2.4 -2.485 GHz UHF radio waves in the ISM band). Bluetooth technology was originally created by telecom giant Ericsson in 1994 as an alternative to the RS232 data line. Bluetooth allows multiple devices to be connected, overcoming the challenges of data synchronization.