eBay offers Audio-Technica ATH-OX7AMP SonicFuel Premium On-ear Headphones w/ Built-in Amp for US$69.99 with US$23.11 shipping to Singapore. Built-in high-output headphone amplifier. 40 mm drivers for clear & natural high fidelity sound. Includes two detachable cords - one regular and one with in-line mic & Carrying pouch. Padded headband conforms to the shape of your head.
- US$69.99 with US$23.11 shipping to Singapore.