Their are so many options are available in market and people got stuck couldn’t find what is the best option for them here we compare and review the audio gear in market.
IEMs
what is IEMs in ear monitors they are earphones which initially designed for musicians , audio engineers , and audiophiles to monitor high quality audio but now its available for every one and at very affordable price. feature they comes with nozzle and silicone/foam tips that fit deep into the ear canal to provide significant noise isolation and detailed sound. cone they have wire which we have to manage all the time
TWS
What is TWS True Wireless Stereo this technology is invented in 1960s to 2000s but TWS generally accepted in 2015 to 2016 when apple launched the first generation of Air Pods, following the trend set by the Onkyo earbuds this is the history of TWS but now we use it frequently in our daily life and they get part of our daily life easy to connect and use but they are not actually produce good sound quality which we even not notice because most of us never use a good quality audio gear. feature no wires link the left and right earbuds they pair with your device and sync with each other wirelessly. cones they have decent audio quality and irritate ears.
Conclusion
Buy TWS if you want convenience and buy IEMs if you want sound quality