Walmart has Sony WH-CH520 Wireless Bluetooth Headphones with Microphone-Black for $35.95. Shipping is usually free to Walmart+ members or on orders over $35.

About this product:

High quality sound and comfortable, all-day listening in a wireless headphone. The WH-CH520 have an ultra-long battery life of up to 50 hours and a 3-minute quick charge gives you up to 1.5 hours of audio playback.