Which requirements are genuinely essential?

Earlier models may now be superseded at the manufacturer. Check the exact package, seller condition, warranty and return terms.

Multipoint normally lets the audio output switch between connections; it does not mean that two streams play in both ears at the same time.

The host device must support the selected codec and mode. Some models need app or device settings; the details are noted in each assessment.

Enter the minimum you need. Manufacturer maximum claims vary by codec, volume, feature settings, device and use.

An earbud rating does not automatically apply to its charging case. The IPX4-level splash choice accepts an IPX4 or IP54 rating on the earbuds when the case is not water-rated; IP54 adds a separate dust-protection digit. The other choice requires IP57 on both earbuds and case. IP57 is not waterproofing and is not a swimming or showering rating.

This option means both USB-C cable charging and no wireless charging. A Lightning-only case is not USB-C; USB-C support alone does not establish wireless charging. Check the exact case version.