The Purfree Lite Open-Ear Headphones are Haylou's latest foray into bone-conduction audio, and are now available to buy from online stores - for a limited-time discount, in some cases. They are thus touted as a premium take on their form-factor at a particularly affordable price, with a three-stage flexible titanium wrap-around wire to keep them in place, large drivers and IP55 ingress protection.