MacNN has reviewed the Scosche solCHAT, a solar-powered, hands-free speakerphone kit. The Bluetooth-based device can mount either to a car's windshield or its visor, and it is USB powered, either through a car charger or a computer. The solChat automatically pairs with a Bluetooth-enabled cellphone, and uses an audio-based interface.

Two hours of sunlight on the solar panels add up to an hour of talk time, for a theoretical total of 12 hours. A 90-day warranty and some background hiss are said to be the primary limitations of the reviewed unit. The solChat costs $100.