BuyDig offers the Logitech UE 900s Ultimate Ears Noise-Isolating In-Ear Headphones in Blue, model no. 985-000381, bundled with the FiiO A3 Headphone Amplifier in Silver for $279 with free shipping. That's $50 under the lowest total price we could find for these items sold separately elsewhere. The earphones feature a braided cable and frequency response of 20Hz to 20KHz. The amplifier is designed to improve sound in headphones rated between 16 to 150 ohms.