Bluetooth 4.0 USB 2.0 supports up to 7 simultaneous connectionsSupports Bluetooth DUN FAX SPP HID FTP OPP SDP HCRP LAN OBEX FTP OBEX OPP OBEX BIP BIP AVRCP A2DP HSP HFP PAN BPP Headset AVCTP AVDTP HDP Find Me Proximity Health Thermometer Heart Rate HID OVER GATT profilesEasy to use Windows configuration tool availableBluetooth driver needed (Bluesoleil driver) Working distance (In an open field): Normally 300 meters up to 600 meters using 5 dipole antenna