FEATURES:CONNECTION TYPE : BLUETOOTH V2.1 USB 2.0BUILT-IN BATTERY, USB CHARGINGCOME WITH A USB CABLEWORKING DISTANCE: ABOUT 10 METERSSUPPORT SYSTEM : WINDOWS 98/2000/XP/VISTAFASHIONABLE DESIGN FOR YOU, YOU WILL NOT MISS ANY PHONE CALL WITH IT.PORTABLE BEHIND-THE-HEAD WEARING DESIGN, VERY CONVENIENT

FEATURES:CONNECTION TYPE : BLUETOOTH V2.1 USB 2.0BUILT-IN BATTERY, USB CHARGINGCOME WITH A USB CABLEWORKING DISTANCE: ABOUT 10 METERSSUPPORT SYSTEM : WINDOWS 98/2000/XP/VISTAFASHIONABLE DESIGN FOR YOU, YOU WILL NOT MISS ANY PHONE CALL WITH IT.PORTABLE BEHIND-THE-HEAD WEARING DESIGN, VERY CONVENIENT FOR SPORTS.USAGE:PRESS THE MIDDLE BUTTON FOR ABOUT 10 SECONDS TILL THE RED AND BLUE LIGHT FLASH ALTERNATELY.TURN ON THE BLUETOOTH DEVICE OF YOUR CELLPHONE, AND SEARCHING THE BLUETOOTH DEVICE NAMED LSD-5011D.NORMALLY IT WILL NOT NEED PAIRING PASS WORD, BUT IF IT IS NEEDED, PAIRING PASS WORD IS 0000.