FiiO Tiny B Silver Hi-Fi DAC & ADC Interface

Portable USB DAC and Headphone Amplifier for Hi-Res Audio On the Go

The FiiO/Snowsky Tiny B Silver is a thumb-sized USB DAC and headphone amplifier that upgrades the audio output of any USB-C smartphone, tablet, PC or laptop. At just 7 g, it plugs directly into the source device with no cable, no battery and no driver needed, and offers both a 3.5 mm jack and a 4.4 mm headphone output on the same unit. It's the right choice for listeners who want studio-grade decoding, dual-headphone sharing and app-based sound tuning in a pocket-friendly form factor.

What Sets the Tiny B Apart in the Sub-$25 Dongle Category

Most budget USB DAC dongles ship with a single DAC chip and a single output. The Tiny B Silver breaks that pattern with two ES9068AS DAC chips handling the left and right channels independently, plus simultaneous 3.5 mm and 4.4 mm playback so two listeners can share one source. A built-in DSP chip adds a 10-band parametric EQ with adjustable frequency, gain and Q-value, controllable through the FIIO Control app on Android or the web interface on PC. RGB sampling-rate indicator lights change color by format.

Technical Specifications — Decoding, Outputs and Build

The decoding pipeline, output configuration and chassis are what determine how a portable DAC performs day to day. The Tiny B Silver pairs dual ES9068AS DACs with a USB-C input, supports the full hi-res range from CD-quality up to 384 kHz/32-bit PCM plus native DSD256, and routes that signal to two independent headphone jacks from a CNC-machined aluminum body.

• DAC chips: 2 × ES9068AS (one per channel) — independent left/right decoding for cleaner stereo imaging
• PCM decoding: up to 384 kHz / 32-bit — covers standard hi-res music libraries and studio masters
• DSD decoding: native DSD256 — plays DSD files without downsampling
• Headphone outputs: 3.5 mm + 4.4 mm (simultaneous) — drives two pairs at once; 4.4 mm port is internally single-ended
• USB input: USB Type-C, plug-in dongle form factor — no cable, no battery, no driver required
• Body & weight: CNC-machined aluminum, 7 g — T-shaped side output resists wear from repeated plugging
• PEQ: 10-band parametric EQ via FIIO Control app (Android) or web (PC) — adjustable frequency, gain and Q-value
• Compatibility: Android / iOS / HarmonyOS / Windows / macOS / Linux; UAC 2.0 and UAC 1.0 modes for Nintendo Switch and PS5

Who the Tiny B Silver Is Built For

The Tiny B Silver is the right choice for smartphone listeners, commuters and casual hi-fi explorers who want better sound from their existing wired headphones without buying a separate player. It suits anyone whose phone has dropped the headphone jack and who needs a USB-C DAC that decodes hi-res files, drives both 3.5 mm and 4.4 mm headphones, and shares audio with a second listener. The inline-control and call-recording passthrough make it practical for daily work calls, while the 10-band EQ gives more demanding listeners room to tune their IEMs and over-ears. The FIIO Control app is Android-only.