I have used sony , bose high end noise cancelling over ear headphones from my friends for a while , well we cannot compare 450BT to either QC35 or 1000XM3 they are into different league, for a price of 8990 which i grabbed on big billion day used for couple of days i observed audio quality is quite impressive.

ANC is OK but i am not able to identify whether its on or off at this point of time since we need to press power button based on pauses will see audio variation.

Bass is not great, It...

Bass-heavy, warm sound. Mic, on calls, is good as is the battery life.