Why this way.

1. Battery-swappable in under 2 minutes - T5 Torx screws, no glue, repl replacement available at cost+10 percent for 7 years. [rule: 7yr-parts] 2. Saffron matte finish with engraved signature inside the back cover -

• no exterior branding, identity-aware design. [rule: saffron]

3. Triple-mode operation: standalone / industry-standard / WanderVerse-Hu WanderVerse-Hub-native - mode 1 works without a phone; mode 2 supports Ap Apple Home/Google Home; mode 3 integrates with WanderNode Hub. [rule: dual- dual-mode] 4. Zero cloud by default, data stored locally - opt-in cloud sync with user-held keys only. [rule: zero-cloud] 5. Dual-source for critical components: Nordic nRF52840 primary, AS5600 a alt-source - ensures no single-vendor lock-in. [rule: dual-source] 6. Ambassador-assembled, signature engraved inside the device - provena provenance and quality assurance baked in. [rule: ambassador] 7. Covert mode + duress code for at-risk users - first-class identity-a identity-aware features included. [rule: identity-aware] 8. WanderVerse Community Pool revenue split per unit sold: 60 percent Amb Ambassador wages, 10 percent PrideFund HYSA, 30 percent WWP nonprofit - s supporting the community with each sale. [rule: 60/30/10] 9. Facial recognition deferred due to identity-aware concerns - PIN + o optical fingerprint authentication used instead. [rule: identity-aware] 10. Invisible mode for high-risk scenarios - complements covert and dur duress code features, enhancing privacy and safety. [rule: identity-aware]

D-NN — Radio function-class adopts Semtech LR2021 (LoRa Gen 4) as primary

Date: 2026-04-25 Strategy: hybrid

What changes: Radio architecture migrates to Semtech LR2021 (LoRa Plus, multi-PHY single-chip with sub-GHz + 2.4 GHz + S-band NTN satellite). Replaces previous SX1262 + nRF52840 + CC2652R7 multi-chip approach. Throughput 40× (62.5 kbps → 2.6 Mbps via FLRC); single global SKU; -142 dBm sensitivity; multi-protocol stack covers LoRaWAN + Sidewalk + Meshtastic + Z-Wave + Wi-SUN + BLE + Thread/Zigbee.

Sole-source variance: Semtech is sole-source for LR2021. Per SOLE-SOURCE-VARIANCE-LR2021.md:

• This product is Tier-1 critical, retains hybrid alt-source path: Founding-tier ships SX1262 + nRF52840 (proven dual-source); Pro / Global SKU ships LR2021 (single-chip, satellite-capable).
• Two PCB layouts; cert burden 2× but justified by global-SKU consolidation downstream.

Rationale: Dual-source rule's intent is supply-chain resilience and pricing power, not vendor purity. Modern equivalent for radio function-class is protocol-fallback compatibility, which LR2021 provides natively across 8+ stacks. Semtech is effectively a standards body now (450M LoRa devices shipped, LoRa Alliance backing).

[rule: dual-source-variance] [rule: dual-source]

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**Note (Perplexity-validated 2026-04-25):** When this doc says LR2021 supports multi-PHY in one chip, the *hardware* is multi-PHY-capable, but full protocol stacks (LoRaWAN, Amazon Sidewalk, Meshtastic, Z-Wave, Wi-SUN, BLE, Thread/Zigbee) integrate via firmware layers, not all bundled native. We ship pre-built stacks for the active set per product. See `PERPLEXITY-VALIDATION-2026-04-25.md` in `_WANDERVERSE-LIBRARY/`.