Sony ILCE-7RM2 How To Use Manual page 21

[2] How to Use Before Use
Identifying parts (Front side)
When the lens is removed
1. ON/OFF (Power) switch/Shutter button
2. Front dial
3. Remote sensor
4. Wi-Fi antenna (built-in)
5. Lens release button
6. Built-in microphone*
7. AF Illuminator/Self-timer lamp
8. Mount index
9. Image sensor**
10. Mount
11. Lens contacts**
*
Do not cover this part during movie recording. Doing so may cause noise or lower the volume.
**
Do not directly touch these parts.
Names of parts