In addition to standalone playback, ECHO NANO supports UAC (USB Audio Class) mode, transforming into a high-performance external USB sound card when connected to a smartphone, tablet or computer via a USB cable. The built-in CS43131 DAC chip processes audio directly, dramatically improving the listening quality of any connected device without installing drivers \u2013 plug and play. In UAC mode, charging can optionally be disabled to eliminate battery concerns on the connected phone. CTIA in-line controls (play\/pause, skip tracks, volume) are also supported via compatible headphone cables, adding convenient hands-free control in mobile scenarios. Storage is expandable via micro-SD card up to 256GB, allowing you to store thousands of songs in your library.<\/p>\n
Detailed specifications:<\/strong><\/p>\n DAC chip: CS43131 Box contents: ECHO NANO Black x1, USB cable x1, quick start guide x1<\/p>","protected":false},"excerpt":{"rendered":" FiiO ECHO NANO is a compact, portable hi-res music player full of character, inspired by the iconic millennial MP3 era \u2013 reborn with modern components and authentic hi-res audio performance inside a pocket-sized aluminum body. Designed for music lovers who value both nostalgia and quality, ECHO NANO combines the tactile pleasure of a classic multi-function scroll wheel with a CS43131 DAC chip, DSD256 hardware decoding and impressive features. FiiO ECHO NANO is precisely crafted from aluminum-magnesium alloy with CNC carving for a refined, durable and smooth-to-the-touch finish. Measuring just 81 x 20 x 11 mm and weighing approximately 33.5 g, ECHO NANO disappears into any pocket, bag or clothing clip. The metallic finish and clean lines give it a timeless aesthetic that matches any style. Available in black!<\/p>\n
\nDisplay: 0.91-inch OLED color display
\nSupported playback formats: DSD, WAV, FLAC, APE, MP3, M4A, OGG
\nMaximum sampling rate (playback): DSD64\/128\/256 | PCM 24bit\/192kHz (WAV, FLAC, APE)
\nUSB DAC sampling rate: PCM 16bit\/48kHz
\nOutput: 3.5 mm single-ended
\nOutput power: \u2265120mW+120mW @ 32\u03a9 (THD+N <1%)
\nSNR: \u2265127dB (A-weighted, 32\u03a9)
\nTHD+N 0.0006%
\nNoise margin 0.7\u03bcV
\nUAC mode Yes - USB sound card (plug-and-play, option to disable charging)
\nBuilt-in controls Yes \u2013 CTIA standard (play\/pause, skip track, volume)
\nMicro-SD card storage (up to 256GB)
\nControl: Metal multi-function scroll wheel (power, volume, screen on\/off)
\nCase material: Series 6 aluminum-magnesium alloy, precision CNC-carved
\nDimensions: 81 x 20 x 11 mm
\nWeight: ~33.5 g<\/p>\n