Stream audio via Bluetooth directly to your inner ear with bone conduction technology. Precisely controlled vibrations transmit sound to your inner ear, allowing you to hear crystal clear audio without blocking your connection to the world around you. The headphones are made to fit all types of ears, regardless of shape and size. The universal fit is designed to stay on securely during active workouts. Enjoy up to 6 hours of playtime and 30 days of standby on a 90-minute charge. The IPX4 sweatproof and water-resistant barrier protects against rain, sweat, and accidental splashes. UNIVERSAL FIT: Comfortably wear your headphones all day regardless of ear size and shape. The comfort ear clips stay in place securely while working out or relaxing at home. CLEAR PHONE CALLS: Confidently communicate on calls and voice chats using the built-in microphones. The noise cancelling mic delivers exceptional call audio for more clear and effective communication. TOUCH AND VOICE CONTROLS: Play, pause, adjust and volume using the easily accessible touch controls. Answer calls and control the music using the enhanced built-in voice control feature. IPX4 SWEATPROOF: The headphones feature a water-resistant barrier to protect against rain, sweat, and accidental splashes for a perfect fit in an active lifestyle. Number of Batteries: 1 Included: 1 Owners Manual(s) Features: Rechargeable Battery Type: Lithium Ion Inputs/Outputs: 1 Headphone Jack(s) Power Source: Battery (included) Measurements: 5.43 Length/Inches, 6.49 Height/Inches, 1.97 Width/Inches Weight (lb.): 0.5 Lb Country of Origin: Imported