| Component | Model | Key Specifications |
| USB MEMS array | SSP-MA16-U2 | 16 MEMS microphones arranged in a 4 × 4 grid, element spacing d = 0.1 m, 16-bit quantization, 48 kHz sampling rate, USB 2.0 interface |
| Processing unit | Raspberry Pi 4B | 4-core Cortex-A72 processor, 8 GB RAM |
| Array frame | Custom aluminum | Array aperture D = 0.3 m, 10 mm ground clearance |
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