Great lightweight headphones with lots of functions and great sound. Easy to connect to my iPhone and battery lasts a bit longer than the claimed 5 hours; I am getting about 6-8 hours. Very pleased with this product

Good sound, but there are no options for size and fit and they have trouble staying in ones ears. After the plastic 'earbud fit covers' are lost or gone - which are not replaceable - they fall out even more.

ear pain after 10 mins use. Its clearly NOT designed for people with small or average ears. I would say my ears falls under the medium sized. would not recommend to anyone with average or small ears. other than this it works great, sounds good, no drop outs through bluetooth.

model sony wi-sp500. paid $64.95 jbhifi half price promo sale

These have a rrp of around $129AUD. Got them for $79 from JB Hifi online (on sale).
Been using these earphones for several weeks, 5 times a day during workouts, walks etc. They grip the inner ear so they don't fall out while being comfortable enough to be unnoticeable. The open design allows outside sounds to be heard so I don't miss door knocks etc. But most impressive is the quality of the sound reproduction which is so immersive and balanced. I get around 4+ days of battery life before the earphone remind me to charge them (with about an hours use still remaining... VERY HANDY IN THE MIDDLE OF A WORKOUT). Best earphone/headphones ever tried.