BACKLIT LCD WITH 12 DIGIT CALLER ID; VIBRATE ALERT FOR INCOMING CALLS; INTELLIGENT STATUS INDICATORS; AMBIENT NOISE REDUCTION; MICRO USB LANYARD TO EASILY VIEW HEADSET STATUS; DISPLAYS & STORES THE LAST 10 NUMBERS RECEIVED FOR REDIALING; PAIRS WITH UP TO 5 DEVICES; BRUSHED ALUMINUM FINISH; UP TO 12 HOURS TALK-TIME OR UP TO 360 HOURS STANDBY; INCLUDES SMALL & LARGE EAR HOOKS & RECHARGEABLE, LITHIUM POLYMER BATTERY