This product from Anycom is described as the “world’s first solar-powered cell-phone car speaker system with Bluetooth wireless technology”.
Enjoy superior clarity with its 16-bit digital signal processor (DSP), echo- and noise-cancellation and a high-performance 95dB speaker. Attractive, slim device attaches to windshield with suction-cup mount — remove easily for use anywhere.
Functions include voice dial, last-number redial, hold, mute and 3-way calling. Large buttons make it easy and safe to operate. Three hours of sunlight give you 30 minutes talk time; for most applications, additional recharging is not needed but you can use the included USB or DC adapter to charge the battery and get up to 15 hours talk time, 25 days standby. Measures.
The ANYCOM Solar Car Kit with Bluetooth measures 2 x 3.6 inches and is available for $99.95 over at the Sharper Image website.