Quite cheap for a car bluetooth kit and can charge via solar panels.
The LG HFB-500 Solar Bluetooth Carkit combines solar technology with the latest in in-car communication. The unit is environmentally friendly, and cost effective, as solar consumption uses less power. Providing up to 16 hours talk time and up to 1100 hours standby, the LG HFB-500 ensures you are always ready to talk. The unit is as aesthetically pleasing as it is functional, with a host of features including Solar Charging (33 hours) Auto Reconnection, Noise Reduction, Multi connection, Easy Pairing and Echo cancellation. Also included is an in car charger for extra peace of mind.
Standby time up to 1100 hours
Talk time up to 16 hours
Solar Charging (33 hours)
Includes In Car Charger