Portable balanced DAC/amp with replaceable battery The FiiO Snowsky is a nano-sized Bluetooth and USB DAC/amp that slips into a pocket yet drives serious headphones. Dual Cirrus Logic CS43131 DACs, up to 220mW of balanced power, LDAC high-res Bluetooth, and a hot-swappable battery system turn this tiny tape-inspired box into a flexible hub for phones, computers, consoles, and car audio. Nano-sized body, serious power The Snowsky is genuinely small — about 2.17 x 1.48 x 0.54in (55.1 x 37.5 x 13.7mm) and only around 1oz (28.3g) — so it disappears into a pocket or hangs off a lanyard without getting in the way. Inside, two CS43131 DAC chips feed dedicated amps that deliver up to 220mW per channel from the 4.4mm balanced output at 32Ω and 100mW from the 3.5mm single-ended jack. That means plenty of clean volume for portable headphones while still staying cool, quiet, and easy to carry every day. Bluetooth and wired modes made simple Power on with a single touch, then quickly switch between Bluetooth, computer, and phone modes with a double press of the multi-function button. Use it wirelessly with your phone or tablet, or plug in via USB Type-C to turn it into a driver-free USB DAC up to 96kHz. That quick switching makes it practical to bounce between a laptop at work, a phone on the train, and a console in the evening without fighting menus. Retro sound presets with DIY tuning Eight built-in sound presets include retro-focused tunings that lean into the “old tape” vibe, softening edges and adding warmth for classic rock, vocal jazz, and older recordings. When you want to fine-tune things further, you can use the companion FiiO Control App or web tools to adjust EQ and sound parameters in detail. Save your own voicings so the Snowsky follows your taste instead of locking you into one default sound. Dual headphone jacks and inline control support Two headphone outputs cover most portable gear without adapters. The 3.5mm single-ended jack works with everyday IEMs and headphones and supports CTIA in-line remotes for volume, play/pause, and mic input, so you can take calls and jump into voice chat without swapping cables. The 4.4mm balanced jack unlocks the full 220mW output for more demanding headphones, giving you more headroom and control while keeping the noise floor under 1µV and the output impedance under 0.3Ω. Endless power with replaceable battery The Snowsky uses a replaceable 3.7V rechargeable lithium cell, compatible with 10440-style batteries, for about 7.5 hours of play per charge. When it runs low, you simply swap in a freshly charged battery and keep listening. No downtime, no waiting on the wall charger. A full charge takes 2 hours or less at 5V/1A, so it’s easy to keep a spare charged in the included battery storage case. USB-powered when you do not want a battery at all For desk use, car use, or speaker duty, you can run the Snowsky directly from USB power with no battery installed. The Type-C port powers the device and handles audio at the same time — just plug it into a computer, car head unit, or USB power source and it comes to life. When USB is unplugged, it powers down automatically, which is handy for installations where you want it to follow your car or computer’s power state. High-res Bluetooth with serious codec support A Qualcomm QCC5125 chipset handles Bluetooth 5.1 with a full suite of modern codecs, including SBC, AAC, aptX, aptX HD, aptX Low Latency, aptX Adaptive, and LDAC. Both Bluetooth and USB modes support up to 96kHz high-resolution audio, so you’re not stuck at phone-grade quality when streaming. Low-latency codec support also helps keep audio in sync for gaming and video, while LDAC and aptX HD give higher-bitrate options for music listening. Car mode, game partner, and desktop sound card The Snowsky is built for more than just pocket listening. Car mode — covered by patent no. ZL201710563549.5 — lets it wake and sleep with your vehicle, adding Bluetooth audio and better DAC performance to older head units. As a computer sound card, it cleans up laptop audio for music, video, and calls. In phone or computer mode with consoles like the PS5 or Switch, it becomes a compact game partner, handling both music and voice. It can also feed active speakers over its headphone output to turn them into Bluetooth speakers. Retro UI, colors, and stickers The design leans into nostalgia without giving up usability. A 0.96in 80 x 160 color IPS display hosts animated UIs, including a tape-style interface that simulates spinning reels as music plays. Classic white and blue color options provide a clean base, and the included sticker sets let you customize the shell for a more vintage or playful look. A lanyard hole gives you the option to wear or hang it, making it easier to grab in daily use. Button layout and daily control The front panel keeps essentials within easy reach. Dedicated next and previous track buttons also handle volume and submenu navigation, while a play/pause button manages playback. A multi-function button switches operating modes, flips between UI themes, and enters or exits the menu. A clearly labeled display, power button, mic opening, and visible 3.5mm and 4.4mm jacks make it easy to glance at the device and know what every control does. Product highlights Ultra-compact Bluetooth and USB DAC/amp with classic tape-inspired design Dual Cirrus Logic CS43131 DAC chips with up to 220mW per channel balanced output at 32Ω Bluetooth 5.1 with SBC, AAC, aptX, aptX HD, aptX LL, aptX Adaptive, and LDAC codec support USB DAC mode up to 96kHz for computers, phones, and consoles via USB Type-C Eight sound presets including retro-focused tunings, plus DIY tuning via app or web Dual headphone outputs — 3.5mm single-ended and 4.4mm balanced — for broad compatibility CTIA in-line remote support with mic, volume, and play/pause controls on the 3.5mm jack Replaceable 3.7V lithium battery with about 7.5 hours playtime and fast 2-hour charging USB-powered operation without a battery for car, desktop, or speaker use High-performance analog stage with SNR ≥ 128dB, THD+N < 0.0018%, and noise floor under 1µV Specs Bluetooth chip: Qualcomm QCC5125, CPU + DSP dual-core architecture Bluetooth version: 5.1 Bluetooth codecs: SBC, AAC, aptX, aptX HD, aptX Low Latency, aptX Adaptive, LDAC DAC: CS43131 x2 USB DAC: driver-free up to PCM 96kHz Display: 0.96in color IPS, 80 x 160 resolution Headphone outputs: 3.5mm single-ended, 4.4mm balanced Output power (single-ended): L+R ≥ 100mW + 100mW (32Ω, THD+N < 1%) Output power (balanced): L+R ≥ 220mW + 220mW (32Ω, THD+N < 1%) Frequency response: 20Hz to 40kHz (-3dB) SNR: ≥ 128dB (A-weighted) Noise floor: PO < 1µV (A-weighted); BAL < 1µV (A-weighted) Output impedance: < 0.3Ω (32Ω load) THD+N: < 0.0018% (1kHz / -4dB @ 32Ω) In-line controls: supports CTIA protocol for mic, volume, and play/pause Power input: DC 5V = 1A via USB Type-C Battery: 3.7V rechargeable lithium battery, compatible with similar 10440 cells, not compatible with 1.5V AAA Battery life: about 7.5 hours per charge (single battery) Charging time: ≤ 2 hours Color options: white, blue Dimensions: about 2.17 x 1.48 x 0.54in (55.1 x 37.5 x 13.7mm) Weight: about 1.0oz (28.3g), including battery What’s included RETRO NANO Bluetooth DAC and headphone amplifier USB Type-C to USB Type-C data cable 3.7V lithium battery (FIIO custom high-capacity cell) Battery storage case Lanyard Quick start guide Warranty card Sticker set Warning card
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