DESC: A wireless speakerphone for your cell phone. Perfect for your vehicle, home, and office. Enjoy crisp, clear sound through a high-performance 96dB speaker that provides the ideal listening level. Answer and end calls directly through the speakerphone. Noise-cancelling microphone ensures optimum voice clarity. Built-in, rechargeable battery provides up to 20 hours of talk time and 20 days of stand-by time between charges. Attaches securely to your vehicle's visors or windshield.