Plantronics M155 MARQUE - Bluetooth Headset - Frustration Free Packaging - Black Answers when you say "Answer" Free Plantronics smartphone app for tips and tools Listen to music podcasts and more Talks you thru the pairing process Mono Bluetooth headset with excellent sound quality and an amazingly lightweight design Stream music, podcasts, internet radio, GPS directions and more Talks you through pairing process for iPhone and Android smartphones Ships in Certified Frustration-Free Packaging Up to 5 hours of talk time, up to 216 hours (9 days) of standby time; full charge in 2 hours