Ebay offers Refurbished Sony WF-C500 Truly Wireless In-Ear Bluetooth Earbud Headphones for $29.99 (reg $99.99) with free shipping.

Product Description:
Discover the freedom of Bluetooth connectivity with the compact WF-C500 truly wireless earbuds, combining uncompromising sound with great battery life, personalization, and IPX4 water resistance for music that goes anywhere.
Specifications:

• 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
• Experience 360 Reality Audio for a truly immersive experience