Sony C500 Truly Wireless Headphones - Black | Headphones

From The Manufacturer

• DSEE restores high frequency sounds lost in compression.
• Up to 10hr battery life, total up to 20hr with charging case.
• Splash proof and sweat-proof with an IPX4 rating.
• Easier, clearer hands free calling.
• Small and light for a great fit and all day wear.
• Ergonomic Surface Design conforms to most ear shapes.
• Fine tune your sound using the Sony , Headphones Connect app.
• Optional use of one earbud only.
• Easy button operation to take control without your phone.