Description: The Holux GR-241 is a low power consumption Bluetooth GPS receiver powered by an AA NiMH battery, giving up to 8 hours of use without any addititional power sources. Light, slim and compact, it also acts as a data logger, with the GPS and logger status shown on a 128 x 32 pixel view area. It also comes with a multi-purpose expansion terminal to connect to non Bluetooth-enabled devices.