Xtreme XBS9-0201-BLK is a Bluetooth speakerphone and car charger that enables hands-free calling and wireless music streaming from your phone to your car's audio system. It features a built-in microphone for clear calls, volume controls, and a USB port for charging your devices. Simply pair your phone via Bluetooth, plug the speakerphone into your car's cigarette lighter socket, and enjoy a safer and more convenient driving experience.