The BY-K4 from Boya is a universal adapter that converts 3.5 mm TRRS to USB-C. You can use this adapter cable to make recordings with an external microphone. The microphone connects to your smartphone via a USB-C port. Various microphones are available as optional accessories.

On one side, the adapter features a 3.5 mm female jack (TRRS). You connect the 3.5 mm male jack of your chosen microphone to this. On the other side, the cable has a USB-C connector that you plug into your smartphone. The adapter cable is 60 mm long. Compared to other cables on the market, you benefit from a thicker cable, which reduces the risk of cable breakage.

You can use this adapter to connect your USB-C smartphone to an external microphone. Thanks to its compact size, you can easily take the adapter with you anywhere. This way, you can conduct interviews or report live in unexpected situations. This makes the Boya BY-K4 an essential, affordable accessory that you should always have on hand. Optional accessories also include other adapters, such as TRS and Lightning connectors.