Motorola T215 Bluetooth Portable Car Speaker (Black)[Retail Packaging] Noise Reduction & Echo Reducing Duplex Technology Talk Time: Up to 36 Hours Standby Time: Up to 370 Hours Range: Up to 33 Ft Two watt speaker system for audio clarity and volume. Simple four button interface. Send/End, Mute, Volume Up, Volume Down. Up to 36 hours of talk time! Noise and Echo Cancellation technology