I purchased this, but I no longer need it as I didn't buy the main unit, so I am selling it as an unused item. AK-BT1 Bluetooth® Adapter for Remote Control By attaching the AK-BT1 to compatible TASCAM products, you can remotely control them from a dedicated app on your smartphone or tablet via Bluetooth® communication, and wirelessly synchronize timecode with Atomos products. Compatible Products/Functions DR-10L Pro / Portacapture X6 / Portacapture X8