U03 Recording Rotary Card U Disk USB 2.0 TF Card Reader with WAV Audio Recording 120-150 Minutes Plastic Body 52x20x12mm Black
U03 Recording Rotary Card U Disk with WAV Audio Recording and USB 2.0

The U03 Recording Rotary Card U Disk is a compact black device that combines USB storage with WAV audio recording. It records for 120 to 150 minutes, making it suitable for capturing spoken audio in situations where a straightforward recording tool is needed. The rotary card design allows the USB connector to rotate into the body, so there is no separate cap to keep track of. It uses a TF card as the memory card type and connects through a USB 2.0 interface for transferring files to a computer or other USB host. The device has no screen and does not support video shooting, so its focus is audio recording and USB storage rather than playback or filming. The plastic shell and 52 x 20 x 12 mm size make it easy to carry in a pocket, bag, or drawer.
Features and Construction

The U03 is built around a simple set of functions: WAV recording, TF card storage, and USB 2.0 connectivity. Its plastic shell and compact dimensions keep the device lightweight and portable, while the rotary card design removes the need for a separate cap. The absence of a screen and video shooting support means the device is intended for audio capture and file storage rather than media playback or filming.
Material and Build
The shell is made of plastic, as stated in the source text. This material keeps the overall body light and compact, which suits a small USB device that may be carried in a pocket or bag. The product size is 52 x 20 x 12 mm, so it occupies very little space when not in use. The black colour gives it a plain, neutral appearance. Because the source text does not list impact ratings or weather resistance, the plastic shell should be treated as a standard housing rather than a heavy-duty enclosure.
Size and Practical Fit
At 52 x 20 x 12 mm, the U03 is small enough to fit in a pocket, pencil case, or bag compartment. The rotary card design means the USB connector can be turned into the body, reducing the risk of the connector catching on other items. The device uses a TF card, which is a small memory card format, and the USB 2.0 interface fits standard USB ports. These dimensions and connector details are the only measurements supplied in the source text, so no further size claims are made.
Uses and Placement

The U03 can be used for audio recording and USB file storage in everyday settings. Its recording time of 120 to 150 minutes supports longer spoken sessions, while the TF card and USB 2.0 interface allow files to be moved to a computer. Because there is no screen and no video shooting, the device is best suited to audio-only tasks.
Event or Professional Use
With a recording time of 120 to 150 minutes, the U03 can capture meetings, lectures, interviews, or training sessions in WAV format. The TF card provides the storage medium, and the USB 2.0 interface allows the recorded files to be transferred to a compatible computer afterwards. There is no screen, so checking recording status must be done without a display. The device does not support video shooting, so it should be used for audio capture only. These points are based on the stated recording format, recording time, memory card type, and transmission interface.
Everyday Home Use
At home, the U03 can serve as a USB storage device for files while also handling simple WAV audio recordings. Its plastic shell and 52 x 20 x 12 mm size make it easy to store in a drawer or keep in a bag. The black colour keeps it unobtrusive. Because the source text does not include battery or charging details, no claims are made about how the device is powered or how long it runs between charges. Keep it dry and avoid rough handling to protect the plastic housing.
Benefits and Buying Value

The main practical value of the U03 is its combination of WAV recording, TF card storage, and USB 2.0 transfer in a single compact body. The rotary card design helps avoid a lost cap, and the 120 to 150 minute recording time supports longer audio sessions. There is no screen and no video shooting, so the device stays focused on its stated functions.
Reuse and Low Maintenance
The U03 uses a TF card as its memory card type, so storage is tied to that card rather than a fixed internal capacity stated in the source text. The plastic shell can be wiped clean when needed, but no specialist cleaning instructions are provided. Keep the device away from water and avoid rough handling. Because no battery or charging information is given, maintenance should be limited to basic physical care and safe storage. The USB 2.0 interface allows repeated connection to compatible ports for file transfer.
Why Choose This Product
Choose the U03 if you need a compact black USB device that records WAV audio for 120 to 150 minutes and uses a TF card for storage. It measures 52 x 20 x 12 mm and has a plastic shell, making it easy to carry. The rotary card design removes the need for a separate cap, and the USB 2.0 interface supports file transfer to standard USB ports. It does not have a screen and does not support video shooting, so it is suited to audio recording and USB storage rather than filming or playback. The pack includes one U Disk.
