This section will be updated regularly to include hot questions, and latest update.
Come back to check here when you have questions. 

Yes. There is mic in MW7 camera. The mic is built in camera body.

Yes. MW7 supports night vision. There are 9 IR LED on the camera. The IR LED is 940nm IR, which is invisible to human eye, no red glow.

First please have a check what is like about the status LED on the camera.
From the status LED, we can tell what is the status of the camera.

1. No light up
The camera has no power. Please check camera is connected to power, including power adapter, or mobile bank, or power back.
And check if the power button on the MW3 is set to ON.

2. Solid Red
Solid red means not reachable to WiFi network or WiFi signal too weak. Move the camera closer to the WiFi router.

3. Flashing Red
Flashing Red means WiFi password wrong. 
In this case, you need to reset the camera, setup the camera again with correct WiFi information.

About how to reset camera, please check this link:  
About how to setup camera again, please check this video guide:

4. Flashing Red and Blue
Flahsing Red and Blue means the camera is still in factory default, or the camera has been reset to , or the camera has been reset to factory default. The camera is waiting for camera setup by user.
Please check this video guide to complete camera setup:

It is normal the camera body is hot when camera running.
The camera has video chipst, WiFi chipset in it. When these chipsets are running, they will generate heat. The heat will be dispersed by the plastic surface. That is why we will feel heat if touching the camera. This is normal, the temperature will be controlled. 

And the camera has been tested with high temperatue testing, it could work with environment temperature 55℃ or less.

Camera record does not always need internet to record.
Please make sure the following, 
– First, Camera has connected to internet at least for seconds after power up.
– Afert that, if camera DOES NOT lost power, even if there is no internet, or no WiFi,  the camera could record all the time till it loses power or reboot.

The MW7 camera support three types of power source. 
For details, please check the following.

1. Power Adapter
MW7 support standard USB power adapter.  There is a USB power adapter in the product box.

2.Mobile Power Bank
MW7 support mobile power bank connect to usb interface to provide power.
10,000 mAh mobile power bank could support MW7 to record 24hours. (exact working time depends on mobile power bank model and efficiency.)

3. Built-in 2600mAh battery
MW7 has a built-in 2600mAh battery. 
With this battery, MW7 could work 5~7 hours without power adapter. Detailed hours depends on recording, night mode etc.