Key benefits Versatile audio options with both wired and wireless connectivity for flexible use with compatible devices. Builtin recording capability in TF or USB mode, enabling easy capture and playback of audio on the go. Hands calling with simple control to answer calls when needed. Stable wireless performance and wide compatibility with Bluetooth 5.0. Core features 6.5mm microphone input and 3.5mm earphone output support for external mics and wired headphones. Recording Recording is supported only in TF mode or USB mode. To start recording, press and hold the MODE button. To stop recording and play back the recorded file, press and hold the MODE button again. To exit recording mode, press and hold the PAUSE button. Recording requires a storage device connected, such as a USB flash drive or TF card. Calling To answer an incoming call, press and hold the PAUSE button. Wireless connectivity Bluetooth version 5.0 for stable connections and broad compatibility. Compatibility and usage notes Works with devices that provide 6.5mm microphone input and 3.5mm stereo/earphone output. Recording saves to an inserted TF card or USB storage; ensure storage is connected before starting a recording. Use scenarios Home office or podcasting setup: connect a 6.5mm external microphone and 3.5mm earphones to monitor audio and record lectures or podcast segments directly to a TF card or USB drive. Onthego recording: insert a TF card or USB storage, switch to TF/USB mode, and use the MODE button to start and stop recordings for interviews, field notes, or quick memos without a computer. Hands calls and listening: pair via Bluetooth 5.0 for wireless listening, and use the PAUSE button to answer incoming calls when you are away from your phone. Notes The device functions as described only in TF or USB recording modes and with compatible storage connected. For call handling, use the PAUSE button to answer; other call controls are not described in these specifications.