A tiny professional listening device and encrypted audio bug designed for discreet concealment, with AES-128 encryption, FHSS and voice-activated burst transmission.
Where the K9-SAT-001 prioritises link performance, the K9-SAT-002 prioritises size and survivability. It is a concealed listening device small enough for difficult placements, with a covert microphone tuned for room intelligibility, retaining the same AES-128 encrypted, frequency-hopping architecture.
Voice-activation (VOX) and store-and-forward burst modes mean the device only transmits when there is audio worth sending, reducing the on-air signature to seconds per day. That defeats periodic RF sweeps and dramatically extends deployment life — the two things that matter most for a long-duration covert placement.
Miniature RF development example. Compact audio systems force the PCB, microphone, power source, RF path and antenna into a tightly constrained mechanical and electromagnetic design space.
Capability
Key features
01
Sub-Miniature
A small form factor for concealment in constrained placements and everyday objects.
02
Voice-Activated
VOX triggering transmits only when audio is present, conserving power and reducing exposure.
03
Burst Transmission
Store-and-forward bursts compress the on-air footprint to seconds, defeating timed sweeps.
04
Encrypted & Hopping
Full AES-128 encryption and FHSS, identical to the core transmitter.
05
Extended Endurance
Low duty-cycle operation greatly extends deployment life on a single battery.
06
Concealment Ready
Board-level supply available for integration into bespoke concealments.
Deployment
Operational deployments and applications
Concealed and body-worn placements
The sub-miniature form factor suits difficult concealments and on-person deployment during undercover work, where a small physical profile and a minimal on-air signature are decisive.
Long-duration covert deployments
Voice-activation and store-and-forward burst transmission cut the on-air footprint to seconds per day, defeating periodic RF sweeps and extending deployment life for placements that must run unattended.
At a Glance
Procurement and technical specification
VOX
Voice-Activated
Burst
Store & Forward
AES-128
Encrypted
Sub-Min
Form Factor
Full Specification on Enquiry
Detailed figures — power output, sensitivity, range and endurance — are
released to qualified buyers on enquiry, subject to end-user qualification
and UK export controls.
Looking for compact professional audio surveillance? The K9-SAT-002 is designed as a small listening device for discreet installation where enclosure volume matters. Compare it with our professional bugging devices and the wider listening device range.
