【USB Conversion Adapter & Remote Control for Daping Voice Recorders】Compatible with DP32-pro, DP22-pro, DP18-pro, and DP16-pro. 【Playback on the Voice Recorder】First, connect the product to the USB conversion adapter & remote control. Then, connect the earphones to the USB conversion adapter & remote control. After connecting the earphones, press the "Play" button on the remote control to play the recording. To stop playback: Press the "Play" button again during playback to stop. 【Important Notes】The USB conversion adapter is designed to not be fully inserted so that the power button can be turned on and off even when it's plugged in. Also, playback can be stopped by unplugging both the USB conversion adapter & remote control and the earphones during playback. However, playback cannot be stopped if only the earphones are unplugged without removing the USB conversion adapter & remote control. 【Durable】Made of durable materials to protect the cable from wear and repeated bending.