Types of EMCĪll devices have the potential to emit electromagnetic fields. EMC tests also determine how the device reacts to electromagnetic interference caused by another device. This interference must be within specific limits to avoid interference in the other devices present within the range.Īn EMC test identifies this electromagnetic interference generated by a device. The change of electrical current and voltage generates electromagnetic interference (EMI). This is because the motor draws more current, which causes a voltage drop. Sometimes we notice that the tube light is flickering when a water pump or motor device is on. It does not emit levels of EM energy that generate electromagnetic interference (EMI) in other devices in the vicinity.Įlectromagnetic interference (EMI) is the interference caused by one electrical or electronic device to another by the electromagnetic fields set up by its operation. If necessary, you can see other ways to find the serial number.EMC stands for Electromagnetic compatibility, which means that a device is compatible with (i.e., no interference is caused by) its electromagnetic (EM) environment. Follow the steps at the beginning of this article. You can find the serial number of your AirPods in the same place as the model number. The status light is on the inside of the case, and the serial number is on the underside of the lid. There’s a Lightning port on the bottom of the case for plug-in charging.

Works with AirPods (2nd generation) and AirPods (1st generation) The status light is on the front of the case, and the serial number is on the underside of the lid.

The Wireless Charging Case is Qi compatible. Works with AirPods (2nd generation) and AirPods (1st generation) The last four digits of the serial number are either 0C6L or LKKT. The AirPods Pro Charging Case works with Qi-certified wireless chargers. The last four digits of the serial number are either 1059 or 1NRC. The MagSafe Charging Case for AirPods Pro is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. The MagSafe Charging Case for AirPods (3rd generation) is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. MagSafe Charging Case for AirPods (3rd generation) Lightning Charging Case for AirPods (3rd generation)

There's also an external speaker on the bottom of the case to indicate charging and battery status, and a lanyard loop on the side. The MagSafe Charging Case (Lightning) for AirPods Pro (2nd generation) is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. MagSafe Charging Case (Lightning) for AirPods Pro (2nd generation) There’s a USB-C port on the bottom of the case for plug-in charging. The MagSafe Charging Case (USB-C) for AirPods Pro (2nd generation) is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. MagSafe Charging Case (USB-C) for AirPods Pro (2nd generation) Year introduced: 2016 Identify your charging caseįind out which AirPods charging case you have by using the location of the status light and other details. Year introduced: 2019 AirPods (1st generation) Year introduced: 2019 AirPods (2nd generation) Year introduced: 2022 AirPods (3rd generation) Year introduced: 2023 AirPods Pro (2nd generation) with MagSafe Charging Case (Lightning) Now that you have the model number, you can use it to find out which AirPods you have: AirPods Pro (2nd generation) with MagSafe Charging Case (USB-C) Identify your AirPods with the model number

Apple emc meaning