1) The open-ear design keeps the ear canal open, so bass will feel lighter than in-ear earbuds. This is expected.

2) Adjust the earbud so the speaker part faces the ear canal and sits as close to it as is comfortable.

3) Open the Noise Audio App, go to the Equaliser and select a mode with more bass, or raise the low frequencies in Custom EQ.

4) Check if Gaming Mode is ON – it uses a sound profile with high, sharp treble. Turn it off for music.