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Small rectangular magnetic voice recorder with USB-C port

Zutiifeu US-SD 136GB Magnetic Voice Recorder

SKU CH-TA8M-SH15K

Magnetic voice recorder with 136 GB storage and DSP 5.0 noise cancellation for 9800 hours of recording

  • Audio recording formatWav
  • Storage media136 GB
  • Host interfaceUSB C
  • ConnectionHeadphones: USB-Type C
  • Battery pack1 g, , lithium ion, 200 milliampere hour, 1
  • DetailsBrand: Zutiifeu, Format: wav, Battery_weight: 1 g, Battery_c
  • Massive 136 GB storage holds up to 9800 hours of audio
  • Built-in magnet lets you attach the recorder to metal surfaces for hands-free capture
  • One-button operation starts and saves recordings instantly without menus
  • DSP 5.0 noise cancellation delivers clear voice capture in classrooms and meetings
  • USB-C interface provides fast file transfer and convenient charging

136GB Magnetic Voice Recorder

The Zutiifeu US-SD provides 136GB of combined storage through 8GB of built-in memory and a 128GB TF card. It records in WAV format and offers up to 9800 hours of capacity for lectures, meetings, or classes. The device connects via USB-C for data transfer and headphone monitoring.

DSP5.0 Noise Cancellation & Magnetic Mount

The recorder uses DSP5.0 noise cancellation to capture clearer audio in noisy environments. A built-in magnet allows attachment to metal surfaces for discreet or hands-free placement. One-button operation handles recording start, stop, and save functions without complex menus.

USB-C Interface & 200mAh Battery Limits

The USB-C port handles both file transfer and audio output, requiring a compatible host or adapter. The internal 200mAh lithium-ion battery limits continuous runtime between charges. Buyers needing wireless file transfer or smartphone app control should look elsewhere.

How it compares

Measured against everything we stock in Digital Audio & Voice Recorders, at today’s prices. Recalculated every night.

Price $69.99
Pricier than about 71% of the 321 comparable items (median $49.99).

Specifications

Product
Brand nameZutiifeu
Model nameUS-SD
Storage
Storage media136 GB
Audio & video
Audio recording formatWav
Ports & slots
Host interfaceUSB C
ConnectionHeadphones: USB-Type C
Power
Battery pack1 g, , lithium ion, 200 milliampere hour, 1
In the box
In the boxVoice recorder

Questions about this item

Can the 128 GB TF card be swapped out when it fills up?

The recorder ships with a 128 GB TF card installed; removing and replacing it with another card is possible, letting you offload recordings and continue capturing new audio.

How long can the 200 mAh lithium-ion battery power continuous recording?

The 200 mAh cell is rated for up to 9800 hours of total recording capacity, though actual continuous run-time per charge will be lower and depends on the DSP 5.0 noise-cancellation load.

Does the USB-C connector get warm during all-day recording sessions?

The USB-C port is used for charging and data transfer only; under normal all-day use the recorder body stays cool because the 200 mAh battery and DSP 5.0 processing draw minimal power.

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