I use the previously-reviewed Nokia BH-111 Bluetooth headphone audio adaptor with my Samsung Galaxy Note II Android smartphone so I can use a pair of ordinary headphones as a Bluetooth headset for that phone.
With this device, I can be able to get effectively a few hours of door-to-door music listening and perhaps a half-hour phone conversation out of this adaptor before it says it is out of battery life. But LG have upped the ante on these Bluetooth headphone audio adaptors by just releasing one that can have a net runtime of 8 hours before it needs charging. Like the Nokia BH-111, these will come with a pair of earphones but you could use any headphones, active speakers, line-level connection or cassette adaptor with them to convert the headphones to a Bluetooth headset or make a Bluetooth handsfree setup out of the active speakers or home / car music system.
Here, this could allow for service as an add-on in-vehicle handsfree that connects to a car stereo but can survive a long road trip, or to work with a pair of noise-cancelling headphones to entertain you through a long-haul flight. Even just spending the day out and about on the bike, walking long distances or making heavy use of public transport and having your smartphone play music through this device won’t have you worry about the device complaining of low batteries before you get home.
The same situation also extends to using the LG Bluetooth audio adaptor to work with TVs, home-theatre systems, games consoles and the like for a long viewing or gaming time without the fear of the audio adaptor or headset “giving out” in the midst of a game or movie. Of course, this device would work to the best with Bluetooth 3.0 setups and implement the aptX audio codec for best results with devices that support that codec.
It is also an example of the effort being put in to Bluetooth and other wireless technologies to have a device like this run for a long time in an interactive manner before it needs charging.