Sony NW-ZX900 Hi-Res Android Digital Audio Player - Uncapped Japanese Model

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Enjoy studio-grade audio the way it was meant to be heard, with no artificial restrictions on volume or quality. The Sony NW-ZX900 Walkman is a high-end digital audio player crafted for discerning audiophiles who demand uncompromising sound clarity, powerful output, and refined design.

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Key Features of the Sony NW-ZX900 Walkman

• Genuine Uncapped Japanese Model - No EU volume cap for unrestricted high-fidelity audio.
• English & Multilanguage Support - English and other major languages are fully supported; on first startup, tap 日本語 (Japanese) on the welcome screen, scroll down the language list, and select English.
• Normal Software Updates - The player updates as normal without affecting its original Japanese specification.
• Hi-Res Audio Certified - Supports MP3, FLAC, WAV, DSD, AAC, ALAC, AIFF, MQA, and more.
• Wi-Fi & Streaming Support - Seamless online streaming with tri-band 2.4GHz/5GHz/6GHz Wi-Fi.
• Large Internal Storage - 64GB internal memory (approx. 33GB usable), expandable via microSD.
• Premium Sound Processing - Features DSEE Ultimate™, Look-ahead Noise Shaper (1 type), DSD Remastering Engine, DC Phase Linearizer, and Vinyl Processor.
• 5.0" Full HD Touchscreen Display - High-resolution, ultra-clear navigation with intuitive Android 16 interface.
• USB DAC Mode - Use as a high-end DAC when connected to a PC.
• Balanced & Unbalanced Outputs - Up to 250mW per channel at 16Ω via the 4.4mm balanced output in High Gain mode.
• Bluetooth 5.4, LDAC, and aptX Adaptive Support - Enjoy wireless audio over multiple advanced codecs.
• Up to 40 Hours of Wired Playback - Approximate continuous playback of MP3 (128kbps) using the W.Music app.

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Full Technical Specifications

Size & Weight

• Maximum Dimensions (W x H x D, including protruding parts): Approx. 77.2 mm × 139.8 mm × 17.5 mm
• Weight: Approx. 345 g

Wi-Fi

• Standards: IEEE 802.11 a/b/g/n/ac/ax
• Frequency Band: 2.4 / 5 / 6 GHz

Power

Battery Life - Continuous Playback (W.Music App)

• MP3 (128kbps) / Stereo mini-jack: Approx. 40 hrs
• MP3 (128kbps) / Balanced standard-jack: Approx. 40 hrs
• FLAC (96kHz / 24bit) / Stereo mini-jack: Approx. 38 hrs
• FLAC (96kHz / 24bit) / Balanced standard-jack: Approx. 38 hrs
• FLAC (192kHz / 24bit) / Stereo mini-jack: Approx. 36 hrs
• FLAC (192kHz / 24bit) / Balanced standard-jack: Approx. 36 hrs
• DSD (2.8224MHz / 1bit) / Stereo mini-jack: Approx. 33 hrs
• DSD (2.8224MHz / 1bit) / Balanced standard-jack: Approx. 38 hrs

Battery Life - Other Modes

• MP3 (128kbps, offline mode) / Stereo mini-jack or Balanced standard-jack: Approx. 35 hrs
• MP3 (128kbps, W.Music App) / Bluetooth SBC - Connection Preferred: Approx. 46 hrs
• MP3 (128kbps, other music app) / Bluetooth LDAC - Connection Preferred (Auto): Approx. 32 hrs

Charging

• Charging Time (Full Charge): Approx. 4 hours
• Battery Type: Rechargeable lithium-ion
• Charging Method: USB power (from a computer via USB)

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Storage Media

• Internal Memory: 64GB (approx. 33GB usable)
• Expandable Storage: microSD / microSDHC / microSDXC

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Playback & Display

• Supported Formats: MP3, WMA, FLAC, WAV, AAC, ALAC, AIFF, HE-AAC, DSD, APE, MQA
• Display: 5.0" TFT color display with white LED-backlight
• Resolution: Full HD (1920 × 1080 pixels)
• Music Searching Methods: All Songs, Artist, Release Year, Playlists, Album, Genre, Composer, Hi-Res, Recent Transfers, Folder, Cue Sheet

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Audio Processing & Enhancements

• Sound Effects: Direct Source (Direct), Look-ahead Noise Shaper (1 type), DSD Remastering Engine, 10-band equalizer, DSEE Ultimate™, DC Phase Linearizer, Dynamic Normalizer, Vinyl Processor

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Headphone Outputs

• 3.5mm Stereo Output - Frequency Response: 20-40,000 Hz
• 3.5mm Stereo Maximum Output: 50mW per channel at 16Ω (JEITA, High Gain)
• 4.4mm Balanced Output - Frequency Response: 20-40,000 Hz
• 4.4mm Balanced Maximum Output: 250mW per channel at 16Ω (JEITA, High Gain)

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Software & Connectivity

• Operating System: Android 16
• Terminals: USB Type-C (USB3.2 Gen1 compliant), stereo mini-jack, balanced standard-jack, microSD slot
• Wireless: Bluetooth 5.4 (SBC, LDAC, aptX, aptX HD, aptX Adaptive, AAC, LC3 supported); NFC: No

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Accessibility

• Talkback: Yes

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What's Included

• Sony NW-ZX900 Digital Audio Player
• USB Type-C Cable (USB-A to USB-C)
• Operating Instructions
• Reference Guide
• Headphone Jack Caps (3.5mm Stereo and 4.4mm Balanced)
• USB Type-C Port Cap

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Why Buy from Uncapped Audio?

• Authentic, Uncapped Models - No artificial sound restrictions. Experience Sony's intended audio quality.
• Fast & Free UK Shipping - No hidden fees, hassle-free delivery.
• Dedicated Support - Expert guidance for your purchase.

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Upgrade your listening experience today with the Sony NW-ZX900 Walkman - uncapped and unrestricted.