This device is very useful in two case scenarios:
- You have a device with just one input, usually for only headphones (example: smartphones), and you want to connect another input device such as a microphone to the device.
- Or, you have a PC or Laptop (some HP devices) with just one combo input (one input for either headphones or microphone at a time) making it difficult to use the two inputs at once.
This 3.5mm jack audio accessory will split the audio input path into two to enable you connect both headphones and a microphone at the same time.
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