Polsen HCA-20MB Around-Ear Bluetooth Headset with Microphone 40mm Drivers | 40mW of Output | Integrated Mic for Talking Calls On-Ear Cup Controls | Lay-Flat Design for Storage & Transport | Built-In Rechargeable Battery 10 Hours of Operating Time Per Charge | 180 Hours of Standby Time Per Charge | 3.5mm Cable for Wired Connections Includes USB Charger Cable Whats In The Box: USB Standard-A Male to Mini-B Male Charging Cable, Stereo 3.5mm Male to Male Audio Cable, Limited 1-Year Warranty