FiiO UTWS5 (2025, MMCX)

FiiO UTWS5 (2025, MMCX) – Hi‑Res Wireless Earhook DAC Amplifier

The FiiO UTWS5 (2025) turns your favorite MMCX-equipped IEMs into high-resolution, true wireless earhooks. Combining dual AK4332 DACs, Qualcomm QCC5141 Bluetooth 5.2 with Snapdragon Sound, wireless charging earhooks, and app‑controlled EQ, it delivers studio-grade wireless audio in an ergonomic and sporty design.

Key Features

• Dual AK4332 DACs + QCC5141 chipset: Independent DAC/amp in each earhook supports LDAC, aptX Adaptive, LHDC and more for detailed 96 kHz/24‑bit playback
• Wireless charging earhooks: Revolutionary touchless charging seals against sweat and moisture—no exposed pins to corrode
• Compact charging case: 1,350 mAh capacity provides ~20 hours total battery life (8 h per earhook, plus ~12 additional hours in case)
• 10-band PEQ & multipoint: Customize sound via FiiO Control app, save EQ presets, and connect two devices simultaneously
• Durable, ergonomic build: IPX4 water resistance, memory‑metal hooks (~8 g each), secure fit for workouts
• Physical controls & volume steps: Large buttons and 32-level volume, with firmware updates via OTA

Customer Benefits

Enjoy the freedom of high-resolution wireless sound with your own IEMs—without compromise. Wireless charging enhances durability, while app-driven EQ and codec support put audiophile control at your fingertips, whether at the gym, commuting, or relaxing at home.

Quick Specs

• Dimensions: Earhooks approx 43.5 × 16.4 × 9.5 mm; case 93 × 70 × 36 mm
• Weight: ~122 g (includes case, 8 g per earhook)
• Bluetooth: 5.2 with LDAC, LHDC, aptX Adaptive/Voice, aptX, AAC, SBC
• DAC/Amp: Dual AK4332; power ≥55 mW @ 16 Ω, ≥33 mW @ 32 Ω; SNR ≥110 dB, THD+N <0.002%
• Battery: 60 mAh earhooks (~8 h); 1,350 mAh case (~20 h total; ~30 h standby)
• Water resistance: IPX4 for earhooks
• Connectivity: MMCX (or 0.78 mm 2‑pin) IEM support, USB‑C charging

What’s in the Box

• Pair of FiiO UTWS5 2025 earhooks
• Charging case
• USB‑C charging cable
• Quick-start guide & warranty card

Use Cases / Ideal For

Perfect for audiophiles who want to convert their MMCX IEMs into premium wireless earhooks. Ideal for sport, commuting, office use, and anyone wanting high-res audio without switching to fully wireless IEMs.

Compatibility

Works with any MMCX-equipped IEMs (choose correct connector variant), connects via Bluetooth to phones, PCs, gaming devices. Controlled via FiiO Control app (Android/iOS) for EQ, firmware, and settings. Enables multi‑device pairing.

Pros & Cons

✅ Pros:

• Authentic sound with dual DACs and LDAC-quality Bluetooth
• Innovative sealed wireless charging prevents corrosion
• Customizable 10-band PEQ and multipoint capability
• Robust, comfortable design with physical controls

⚠️ Cons:

• Case is relatively large for pocket carry
• Connector choice (MMCX vs 2‑pin) is fixed—no mix-and-match flexibility
• Ambient mode reported to be inconsistent in some firmware versions

The FiiO UTWS5 (2025) redefines wireless earhook DACs by blending audiophile-grade sound, wireless convenience, and clever engineering into a polished, sweat-resistant package. It’s the perfect upgrade for IEM enthusiasts seeking high-res wireless freedom.