NeweggFlash offers the refurbished JBL Wireless Bluetooth In-Ear Headphones in Black, Blue, or White, model no. J46BT, for $24.99 with free shipping. That's $10 under our mention of a new pair from last December and the lowest total price we've seen. (It's currently $55 under the best price for a new pair.) They feature a frequency response of 20Hz to 18kHz and 6mm drivers.
No warranty information is provided.