Great price, US $1 cheaper than the last deals. Price is US $2.49 with free shipping, buy US $0.29 small order fee applies for orders under US $5 it seems. You'll need to untick insurance etc. at checkout unless you want to pay the extra for that.
Ensure you pay in USD as their AUD rate is way inflated. See here
Main Features:
Aluminium alloy earbud, anti-fingerprint and durable
Third generation damping balance system delivers the more clear and detailed sound
Built-in mic for hands-free calls
On-Cord Remote with Play/Pause/Answer/Hang-Up (No Volume Control)
Ergonomics design, comfortable to wear
As there is no coupon, it appears there is no purchase limit.