DigiTech AA2112 - LED Indicator Guide; Understanding LED Status Indicators

6. LED Indicator
Status LED Indicator
Power On Blue LED Flash Twice
Power Off Red LED Flash Twice
Pairing Mode
Blue LED Flash (TX Mode)
Red & Blue LED flash alternatively (RX Mode)
Disconnect Standby Mode Blue LED flash once every second (TX mode)
Unconnect standby mode
Blue LED flash once every second (TX mode )
Blue LED flash twice every 3 seconds (RX mode )
Connected standby mode Solid Blue LED
Low battery Red LED flash
Charging Solid Red LED
Full charged Red LED turn off