... BTW (Microsoft officially designated software) Bluetooth software. 3, support for Windows 98/ME/2000/XP/2003/VISTA operating system, Windows ... (standard) up to 4bm, low radiation. 5, modulation: 2.4G Direct Sequence Frequency Hopping (FHSS).6, transmit power: Class 2 ... notebook computers, can also support the Bluetooth HID protocol to connect a variety of portable electronic devices, IPDA, PDA, UMPC, ...