iKross Solar Powered Windshield Mount Wireless Bluetooth Speakerphone Handsfree Car Kit For Smartphone, Cell Phone, Tablet, Blackberry, iPhone and More iKross Solar Powered Bluetooth Wireless Car Kit. MultiPoint feature: connect 2 cellphones at the same time Answer, end and reject phone call. Redial, voice dial & call transfer. Volume adjustment & mute features Built-in rechargeable battery and solar panel. Recharge battery either by charging cable or direct sunlight Stand-by time: Up to 1000 hours. Talk time: up to 5 hours. Battery charging time (by cable): 2-3 hours. Battery charging time (by solar): 9 hours