Hollyland MARS 400S Faq page 4

 DISPLAY
1. Why there is a battery icon on the screen?
The battery icon indicates that battery level is low, and the device could only work for about 30 more minutes.
2. Why "X" is on the signal bar for device 1 or 2?
It is normal. MARS 400S supports 1 TX connects to 2 RX. If only 1 RX is connected, the display of the signal for the other device will be
"X".
3. How to confirm if the device detects the USB flash?
A USB icon will appear on the OLED screen once the device detects it.
4. Where to find the SSID required in the App connection?
The WiFi name of the device consists with "HLD_" + the device's SSID. The SSID with seven digits of numbers and letters is displayed on
the screen of both TX and RX.