Panasonic offers its Panasonic In-Ear Headphones in Blue, model no. RP-HJE190-A, for $24.99. Coupon code "BUSTABEAT" cuts the price to $10. With free shipping, that's tied with our mention from four days ago, since expired, and the lowest total price we could find by $3. They feature a frequency response of 6Hz to 24kHz and a 3.5mm jack. Deal ends October 31.