No Ear-hook Needed, stays put in your ear. You'll forget it's even there. The in-ear flexible loop provides plenty of comfort and stability for most applications. An Ear-hook is also provided to add additional stability for the very active lifestyle user. Longer Battery life: Now talk time is up to 6 hours OR a Standby Time of up to 100 hours before you need to recharge with the included 110 to 120 volt AC battery charger. Samsung WEP250 Bluetooth headset is both stylish and offers Longer Talk Time than the WEP200 it replaces.