The Sony WF-1000XM4 was released in Jul, 2021 at the price of $279. It supports Bluetooth A2DP audio codecs: (AAC, LDAC, SBC).
The Sony WF-1000XM4 last up to Rated up to 8.00 hours between charge. A note that with ANC, LDAC and DSEE, the playtime is significanlty shorter, down to 3.5 hours.
The Sony WF-1000XM4 has the MT2822SA Bluetooth Soc on board, which is believed custom Airoha AB1568 (Airoha is also owned by Mediatek)