Disassembled Earphone Unit
A disassembled wireless earphone unit is presented alongside a ruler for scale. The earphone casing is open, revealing its internal structure. A compact printed circuit board (PCB) is visible, connected via thin wires. A separate component, possibly related to the audio output or microphone, is also shown. The ruler displays markings in centimeters and millimeters, indicating the physical dimensions of the components.
Main Printed Circuit Board (PCB)
The primary printed circuit board (PCB) for the wireless earphone is detailed. Prominent markings on the PCB include the model identifier "HF-8033-36A-V1" and a date code "20240920". An "ANT" label signifies the antenna connection point. Integrated circuits are visible, with one chip clearly marked "AB C16040 XOH453". The orientation of the board is indicated by a "UP" label. Various electronic components and connectors are populated on the board, along with attached wires for power and data transmission.
Rechargeable Battery
A small, rectangular rechargeable battery is shown. It is encased in gold-colored foil and features attached wires for power supply. The battery specifications are printed on its surface: "TAKU 3.7V 30mAh 111Wh250mJ". This indicates a voltage of 3.7 volts and a capacity of 30 milliampere-hours.