Sieninis stetoskopinis grindų klausymo mikrofonas

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• Gamintojas: Spreest
• Modelis: HY929
• Spalva: black

Modern seismic eavesdropping HY929 brand Spreest enables the reception of sounds penetrating through walls, doors and other partitions.

The set consists of a main unit cooperating with interchangeable probes and a sound recorder, which allows you to record the received signal directly on the memory card.

Thanks to high sensitivity, the device effectively captures vibrations transmitted by building materials, enabling real-time listening and convenient recording of sound for later analysis.

Key features

1. Listening through walls and other partitions – The high-sensitivity probe receives vibrations transmitted through walls, doors, floors and other structural elements, allowing you to listen to sounds from adjacent rooms.

2. Two probes for different applications – A stethoscope microphone for working on solid surfaces and a needle microphone that allows listening through gaps, vents or insulation materials.

3. Adjustable reception sensitivity – Two gain levels allow you to adjust the device to working conditions – from standard listening to the reception of very weak sounds.

4. Recording to microSD card up to 32 GB – The included recorder allows you to record the received sound directly on the memory card, so that the recordings can later be played back or transferred to a computer.

5. Real-time listening – After connecting the headphones, the user can listen to the received sounds without delay.

6. Simple operation – The device is ready to work after connecting the selected probe and turning on the power supply – it does not require installing applications or configuration.

7. Built-in battery – Power from a 350 mAh battery provides mobility and allows you to use the device without the need for constant connection to a power source.

8. MP3 Recording Player – The recorder allows you not only to listen to the recordings made, but also to play MP3 files stored on the memory card.

Listening through walls

Advanced seismic technology enables effective capture of vibrations and sounds penetrating through walls, doors and other partitions.

Thanks to the sensitivity of the probe reaching –70 dB and signal amplification up to 20 000×, the device allows receiving even very quiet sounds.

The set includes two interchangeable probes – a stethoscopic microphone for working through solid surfaces and a needle microphone, ideal for listening through gaps and hard-to-reach places.

This versatile solution will work wherever precise sound detection counts.

Components of the device

Seismic eavesdropping:

1. Eavesdropping Mode Switch

2. ON/OFF Knob – Turn the device on/off

3. Port to connect the probe

4. Device Charging Port (USB-C)

5. Diode indicating the operation of the device

6. Port for connecting headphones (Mini Jack)

Sound Recorder:

7. Port for connecting headphones (Mini Jack)

8. ON/OFF button - turn the device on/off

9. Slot for memory card

10. Diode indicating the operation of the device

11. "+" and "–" buttons for scrolling recordings

12. Device Charging Port (USB-C)

Technical specification

Seismic eavesdropping:

• Power consumption: About 15 mA
• Power Supply: Lithium battery 3,7 V
• Battery capacity: 350 mAh
• Probe sensitivity: Approximately –70 dB
• Maximum sound amplification: Up to 20 000×
• Signal penetration: Through cement, steel and other structural elements
• Charging time: Up to 90% – about 3 hours, full charge – more than 12 hours
• Dimensions: 59 x 57 x 22 mm
• Weight: 62 g

Sound Recorder:

• Support for memory cards: Up to 32 GB (we recommend class 10 from well-known manufacturers, formatted to FAT32) (not included)
• Recording format: MP3
• Charging: DC 5V power supply / minimum 300mA
• Charging time: About 3 to 5 hours
• Battery capacity: 220 mAh
• Recording time: About 5 to 6 hours
• Power consumption during recording: About 40 mA
• Playtime: About 6 to 7 hours
• Power consumption during playback: About 35 mA
• Dimensions: 40 × 44 × 22 mm
• Weight: 20 g

The set includes

• 1x Seismic eavesdropping through the wall HY929
• 1x Sound Recorder
• 1x Headphones
• 1x Stethoscopic Microphone
• 1x Needle Microphone
• 1x Charging cable
• 1x USB-C Power Adapter
• 1x User Manual

Before using the device as a eavesdropping we suggest you familiarize yourself with the legal restrictions.

Link to the in Polish: https://hackmd.io/@spreest-manuals/Skkswp7QMl

Link to the instruction manual in Czech:

Link to the instruction manual in Slovak:

Link to the instruction manual in Hungarian:

• EAN: 5906168048128
• Brand: Spreest
• Manufacturer code: Seismic eavesdropping through the wall HY929
• Model: HY929
• Condition: New
• Package condition: Original

Specifications

Group	Name	Value
Parametry	Condition	new
Parametry	Invoice	With VAT invoice
Parametry	Brand	Spreest
Parametry	Model	HY929
Parametry	Color	black
Parametry	Power supply	rechargeable battery
Parametry	EAN (GTIN)	5906168048128
Parametry	Manufacturer code	Podsłuch sejsmiczny przez ścianę HY929
Parametry	Certificates of conformity	CE