Groupon offers the Sony Wireless Bluetooth In-Ear Sports Headphones
in Black, Red, or Blue, model no. MDR-XB50BS, for $52.99
with free shipping
. That's tied with last week's mention as the lowest total price we could find by $25. They feature up to 8.5 hours of playback per charge, built-in mic, sweat resistance, and wraparound headband.