Built-in Magnet Mini Voice Activated Recorder 3.4 cm Black
with iPhone OTG
$50.99
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Built-in Magnet Mini Voice Activated Recorder 3.4 cm Black
$50.99
The Built-in Magnet Mini Voice Activated Recorder is a small digital audio recording device for people who need to capture meetings, lectures or presentations without carrying bulky equipment. Measuring 3.4 × 3.4 × 0.79 cm and weighing approximately 11 g, it sticks to metal surfaces such as blackboards or filing cabinets using its built-in magnet. A full one-hour charge provides up to 20 hours of recording time and up to 100 hours of stored recordings.
Key features
- Built-in magnet – lets you attach the recorder to metal surfaces for hands-free recording during training presentations or meetings.
- Intelligent voice-activated recording – starts recording when sound is detected and stops when it is silent, saving memory space and battery power.
- HD noise reduction – uses a built-in DPS chip to filter noise and capture clearer real human voice playback.
- Long battery life – charges fully in 1 hour and records for up to 20 hours, with up to 100 hours of stored recording time.
- Automatic save on power off – saves the recording file before shutting down when the battery is low, so data is not lost.
- OTG mobile phone connection – connects to iPhone and Android phones through an OTG adapter to play or delete files directly on your phone.
Specifications
| Product type | Mini voice recorder |
|---|---|
| Model number | Q37 |
| Color | Black |
| Dimensions | 3.4 × 3.4 × 0.79 cm |
| Weight | 11 g |
| Battery type | Built-in high-energy polymer lithium battery |
| Full charge time | 1 hour |
| Recording time | 20 hours |
| Stored recording time | 100 hours |
| Audio format | WAV |
| Playback formats | MP3, WAV |
| Voice activated recording | Yes |
| Noise reduction chip | Built-in DPS chip |
| OTG connection | iPhone and Android |
| Available options | Recorder, with iPhone OTG, with Android OTG |
Ideal for
- Recording training presentations and meetings on a blackboard or metal surface
- Capturing lectures and interviews with voice-activated operation
- Users who want a lightweight recorder they can carry without burden
- People who need to play or delete recordings directly from an iPhone or Android phone
FAQ
Does it start recording automatically?
Yes. It uses intelligent voice-activated recording, starting when sound is detected and stopping when there is no sound.
Will it work with my phone?
Yes. It connects to iPhone and Android phones through an OTG adapter so you can play or delete files on your phone.
How long does the battery last?
A full one-hour charge provides up to 20 hours of recording time and up to 100 hours of stored recordings.
What happens if the battery runs low?
The recorder automatically saves the file before shutting down to prevent losing recording data.
How big is it?
It measures 3.4 × 3.4 × 0.79 cm and weighs approximately 11 g.