Huawei E5771h-937 - Status Indicators

2
 Signal indicator
 Green: Strong signal.
 Yellow: Weak signal.
 Red: No signal.
 Power supply port
 Micro USB port
 Lanyard hole
 Battery indicator
 Four indicators steady on: The remaining battery is 75% to 100%.
 Three indicators steady on: The remaining battery is 50% to 75%.
 Two indicators steady on: The remaining battery is 25% to 50%.
 One indicator steady on: The remaining battery is 10% to 25%.
 Fast blinking (twice per second): less than 10% battery remaining.
 Slow blinking (once per second): charging.