Ebay offers Open-Box JLab Studio Bluetooth Wireless On-Ear Headphones for $9.49 (reg $29.99) with free shipping.

Product Description:
The Studio Wireless headphones feature a long 30+ hour battery life, so you can jam out for days. Cloud Foam earcups bring studio comfort to you, plus adjustable and foldable hinges mean you can bring them anywhere. Control all of your music on the side of the earcup, as well as answer and hang up phone calls. Custom EQ3 Sound allows you to choose your tune between Signature, Balanced, and Bass Boost.

• Weight: .5 Pounds
• Water Resistance: No Water Resistance Rating
• Ear Cushion Material: Foam
• Estimated Charge Time: 3 hours
• Electronics Features: Foldable Design
• Connection Types: No Wired Connection Ports
• Wireless Technology: Wireless
• Package Quantity: 1
• Microphone: Built-In Microphone
• Maximum Battery Charge Life: 30 Hours
• Battery: 1 Non-Universal Lithium Ion, Required, Included