The LED indicator on the Active 3D Glasses blinks. (3D models only)

• Lights up for 3 seconds: Indicates when turning on the glasses.
  
• Blinks every 2 seconds: Indicates the glasses are powered on.
• Blinks 3 times: Indicates the glasses have been powered off.
• Blinks green and yellow alternately: Indicates the glasses have started the registration process.
• Blinks 3 times every 2 seconds: Indicates the battery capacity is almost running out. Replace the battery.