In this cavity, there is a speaker unit and a logic board.

The newly designed 9.2mm speaker unit is protected by a transparent cover.

Insert wisdom here.

Logic board can be apart easily.

RED: EMERALD 4.1 BAS200100

Orange: 3460 3 K AWBX

Sky blue: CTD L2B

Green: 20401 ZOORD

Battery was located in a definite different space to the logic board.

If you want to change the battery, you have to open the cavity behind.

Insert wisdom here.

Insert wisdom here.