The Plantronics M55 Bluetooth wireless headset does it all -- listen to phone calls, music, podcasts and more! Answer calls by just saying "answer" without the need to press a button. Talk time on a full charge is up to 11 hours, and standby is up to 16 days. Deep Sleep mode provides extended battery life, up to 5 months, when not in use. Audible low battery alerts and noise reducing microphone. Multipoint technology allows you to pair the headset with up to 2 bluetooth devices. Comfortable fit on either ear, easy set up and wideband technology for added clarity, all at an affordable price. What more could you want? (Note: Model M55 replaces the discontinued model M50) One-year factory warranty.