I checked all these, current lowest price and equal too or better than previous deals on ozbargain (applies to Momentum 4 and XM4 only if you get 8% CR cashback).
Cashback calculated on extra 10% off price, 10% off again because CR is before tax, then minus 8% of that total.
Cashrewards 8% off BingLee: https://www.cashrewards.com.au/store/bing-lee
also just quick PSA Momentum 4 known to have a lot of app bugs 8 months ago. CH720N's ANC is known to not be good at cancelling low frequencies (unsuitable for plane use). E700B is a new release from Yamaha, but I have heard in both multiple feedback/reviews online and youtube reviews that the earpads are small.
Sennheiser Momentum 4 $394 C&C (after 8% cashback roughly $365.82 C&C) <—- lowest price so far with CR and C&C https://www.ozbargain.com.au/product/sennheiser-momentum-4
Black - https://www.binglee.com.au/products/momentum-4-black-m4aebt
White - https://www.binglee.com.au/products/momentum-4-white-m4aebtw
Sony CH720N $134.10 C&C (after 8% cashback roughly $124.45 C&C) <—- lowest price so far before and after CR https://www.ozbargain.com.au/product/sony-wh-ch720n
Black - https://www.binglee.com.au/products/wireless-noise-cancel-bl…
Blue - https://www.binglee.com.au/products/wireless-noise-cancel-bl…
White - https://www.binglee.com.au/products/wireless-noise-cancel-wh…
Sony WH-1000XM4 $334.80 C&C (after 8% cashback roughly $310.70 C&C) <—- lower price than recent deal with 200 votes by 42c except only after CR and C&C.
Black - https://www.binglee.com.au/products/sony-wh1000xm4b-wireless…
Silver - https://www.binglee.com.au/products/sony-wh1000xm4s-wireless…
JBL TourOne M2 $223.20 C&C (after 8% cashback roughly $207.13 C&C) <—- lowest price so far before and after CR https://www.ozbargain.com.au/product/jbl-tour-one-m2
Black - https://www.binglee.com.au/products/jbl-tour-one-m2-blk-jblt…
Yamaha E700B $222.30 C&C (after 8% cashback roughly $206.30 C&C) <—- lowest price so far before and after CR https://www.ozbargain.com.au/product/yamaha-yh-e700b
Thanks to bargainsgrabber for posting the extra 10% off @ BingLee https://www.ozbargain.com.au/node/816610
Which one should I get?