Kisonli Bluetooth Speaker Mobil B1 Solar Car Wireless Mega Bass . This portable speaker enables wireless streaming via Bluetooth connectivity. Its solar charging capability ensures uninterrupted music on-the-go. The Mega Bass technology produces powerful sound, ideal for outdoor gatherings or road trips. Model B1 Solar powered Bluetooth speaker with powerful bass for an immersive audio experience. Ideal for music enthusiasts on the move. Compact and cordless, perfect for outdoor use and travel.