Say hello to true wireless freedom and goodbye to messy cords. With no strings holding you back you can do more and be more in your sweatproof truly wireless earbuds. The included recharging case not only protects the earbuds while you stow them away, but can also recharge your earbuds fully between your longest listening session. The right and left earbuds are paired together right out of the box, so all you have to do is connect via Bluetooth to your favorite device. One key control (Bluetooth, play, pause, phone, on/off) and voice prompts put these 'buds a cut above the rest. So what are you waiting for? Live wire-free today. Number of Batteries: 1 Included: 1 Warranty Card(s), 1 Carrying Case(s), 1 Usb Cable(s) Features: Built-In Microphone, Wireless, Rechargeable, True Wireless, Bluetooth Compatible Battery Type: Lithium Ion Impedance: 16 Ohms Manufacturer Warranty: 90 Day Parts Limited Power Source: Battery (included) Measurements: 1.12 Width/Inches, 1 Length/Inches, 1.11 Height/Inches Minimum Frequency Response: 20 Hertz Maximum Frequency Response: 20 Kilohertz Weight (lb.): 0.1 Lb Country of Origin: Imported