The battery life of a device is an important factor to consider when making a purchase. When it comes to the battery life of this particular device, you can expect up to 8 hours when plugged into a wall outlet or 4 hours when used wirelessly with its rechargeable lithium battery pack included in the package. This is more than enough for most users, as it allows for extended usage without having to worry about constantly charging your device. The lithium-ion technology ensures that the battery will last longer and charge faster than other types of batteries, giving you maximum efficiency during use.