Jabra's BT4010 offers a new level of usability for Bluetooth Earsets. With the BT4010, there's no need for guesswork or interpreting flashing lights. With one glance, you can easily see your battery level, if your earset is connected and if you're 'on the call'. Small in size but big on design and user friendliness - the BT4010 offers long talk time and crystal clear sound. Wear this earset with or without the ear hook ? it's your choice.