Key benefits and features Flexible recording capability: recording only works in TF mode or USB mode. To start recording, hold the MODE button. To cancel recording and play the recording file, hold the MODE button again. To exit recording mode, hold the PAUSE button. A storage device must be connected during recording, such as a USB flash drive or TF card. Clear amplification: uses the TPA3116 amplifier chip for enhanced sound performance. Hands calling: supports calls; hold the PAUSE button to answer when a call comes in. Bluetooth connectivity: Bluetooth version 5.0 for stable wireless audio streaming and device pairing. What it does Streams audio via Bluetooth 5.0 and delivers amplified sound through the builtin amplifier. Records audio to external storage when a USB flash drive or TF card is connected, using a simple MODE control sequence. Manages incoming calls with a dedicated PAUSE button control for quick answering. Enables playback of recorded files directly from the connected storage device after stopping the recording process. Important attributes Function: Bluetooth streaming, recording to external storage, and call handling. Compatibility: supports TF cards and USB storage for recording; Bluetooth 5.0 for wireless connections. Performance: TPA3116 amplifier ensures audio output quality appropriate for compact speaker systems. Control: MODE button for recording operations; PAUSE button to exit recording mode or answer calls. 23 use scenarios Invehicle use: pair with a smartphone via Bluetooth 5.0 to stream music and manage calls. When you need to capture notes or meeting snippets, insert a USB flash drive or TF card, start recording by holding MODE, and stop and play back by holding MODE again. Home or office use: use as a compact Bluetooth speaker for daily listening. Record important discussions or memos to an external USB or TF storage by using the MODE control sequence, then play back the files from the connected storage. Travel or outdoor use: portable audio with Bluetooth 5.0 for music playback from a phone or other Bluetooth source. Use the recording function to capture quick voice notes or field observations on USB/TF storage, then review the recordings later by playing back from the stored file. Technical specifications (key points) Recording: supports TF mode or USB mode. Start recording by holding MODE; cancel recording and play the recording file by holding MODE again; exit recording mode by holding PAUSE. Requires a connected storage device (USB flash drive or TF card). Amplifier: TPA3116 chip. Calls: hold PAUSE to answer incoming calls. Bluetooth: version 5.0.