These are the fitness version of the Plantronics 505 so are suitable for working out.
While they are headphones they are actually a headset with a small internal microphone.
No noise reduction, but might be useful for home office/relaxation/activity.
They can be used/charged with a cord, but are bluetooth.
I paired mine to BT600 on my work computer, so can have a set of wireless headphones for home office, leaving the better work supplied ones at work.
They are light and can be worn for a long time, and have 18hr run time. Sound OK to me.
also available from amazon in teal https://www.amazon.com.au/Plantronics-BackBeat-505-Headphone…
JB-Hifi have them for the same price https://www.jbhifi.com.au/products/plantronic-backbeat-fit-5… which gives you no cashback but a better return option if they break.
Great headphones. I've had mine for about 6 months now and use them in the gym for about 90 mins, 5 daya week. Usually only have to charge them say once a week. Great sound quality and very comfy to wear.