Lightweight and comfortable bone conduction design, sports headphones with up to 8 hours of use. - Model Name: OpenRun - Brand: SHOKZ - Color: Purple - Weight: 26g - Bluetooth Version: 5.1 - Waterproof Rating: IP67 - Battery Charging Time: 1.5 hours - Usage Time: Up to 8 hours - Sound Quality Technology: PremiumPitch™ 2.0 Thank you for viewing. I just bought these, but I'm selling them because I want something else. Brand new, unopened. Includes shipping via Yu-Yu Mercari.