HiBy W4 Bluetooth Headphone Amplifier & USB DAC — BT 5.4, LDAC, DSD512, 2-Inch Touchscreen

HiBy W4: A compact powerhouse for your headphones

Meet a portable combo that blends a flagship audio chipset with dual DACs and dual amplifiers. Its design emphasizes quick usability, enabling one-tap switching between Bluetooth and USB DAC modes so you can move between devices without fiddling with settings.

Wireless and wired performance you can feel

The W4 pairs Bluetooth 5.4 with high-resolution codecs like LDAC, aptX Lossless, aptX HD, and Snapdragon Sound for stable, immersive sound. It also accepts an external microphone and includes cVc noise cancellation for clearer calls. NFC one-touch pairing speeds up connections, so you spend less time pairing and more time listening.

Advanced decoding for rich detail

In USB DAC mode, it supports UAC 1.0 and 2.0 and decodes up to DSD512 and PCM 768kHz/32-bit, reducing distortion and crosstalk while preserving subtle textures in your favorite tracks.

• One-tap switching between Bluetooth and USB DAC modes for fast multi-device use.
• Bluetooth 5.4 with LDAC, aptX Lossless, aptX HD, and Snapdragon Sound for high-fidelity wireless listening.
• NFC one-touch pairing for quick, hassle-free connections.
• External microphone input and cVc noise cancellation for clearer calls.

• UAC 1.0/2.0 USB DAC with DSD512 and PCM 768kHz/32-bit decoding for detailed playback.
• 2-inch touchscreen with album artwork and track info, plus 3 gain levels and adjustable balance.
• 3.5mm single-ended and 4.4mm balanced outputs delivering up to 475 mW of power.
• Power options include internal battery or host power, with a charging lock and power-follow mode for car use.

Designed for real-world use, the W4 includes a rear clip for secure on-the-go wear and a sturdy aluminum alloy body. A volume‑limit feature protects hearing (configurable up to 30 levels in developer mode), and a real-time sampling rate indicator remains visible even when the screen is off.

Whether you’re commuting, traveling, or enjoying a quiet night at home, the HiBy W4 aims to be a flexible companion that adapts to your setup—without promising guarantees, but with meaningful possibilities for richer, more immersive listening experiences.