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

HiBy W4: Premium Bluetooth Headphone Amplifier and USB DAC

Meet the HiBy W4, a compact, feature‑rich dual‑mode device designed to elevate both wireless and wired listening. Built around a premium audio architecture, the W4 combines the core components QCC5181, AC7923B, dual CS43198 DACs, and dual SGM8262 amplifiers to offer a detailed, engaging listening experience across formats. It’s crafted for real‑world use—whether you’re commuting, working at a desk, or pairing with a digital audio player—without demanding a trade‑off in portability.

Switching between Bluetooth and USB DAC modes is fast and effortless with a single tap, ensuring you stay in the moment rather than fiddling with cables. Bluetooth 5.4 supports high‑fidelity codecs such as LDAC, aptX Lossless, and aptX HD, while NFC one‑touch pairing makes connection quick and reliable. An external microphone input and cVc noise cancellation help keep calls clear when you’re on the move.

• Wireless performance: LDAC and aptX Lossless deliver high‑resolution streaming on compatible devices.
• Wired performance: UAC 1.0/2.0 with PCM up to 768kHz/32‑bit and DSD512 decoding preserves micro‑detail and reduces distortion.

The W4 also features a responsive 2‑inch touchscreen that shows album artwork and track info in Bluetooth mode, plus a robust output slate with 3.5mm single‑ended and 4.4mm balanced ports capable of up to 475 mW. Power flexibility is a key design idea: you can run on the built‑in battery or draw power from the host device, with a charging lock switch and a power‑follow mode that makes car or desktop use simple and seamless.

• Power flexibility: internal battery or host power for portable or stationary setups.
• Output versatility: balanced 4.4mm and single‑ended 3.5mm connections delivering strong, clear signal.

On‑device controls enhance everyday usability: a volume lock, status indicator, and a safe default volume limit help protect hearing while maintaining precise control. Real‑time sampling rate remains visible even when the screen is off, keeping you informed without distraction. Additional sound shaping is available through three gain levels, four digital filters, and multiple EQ presets, giving you room to tailor the sound to your taste.

Designed with daily life in mind, the HiBy W4 blends portability with performance. Its compact footprint fits in a bag or coat pocket, and its thoughtful interface is easy to navigate during commutes, at a desk, or on a portable setup with compatible gear. Whether you’re pairing with a smartphone, computer, tablet, or digital audio player, the W4 is designed to adapt to your listening routine and evolving preferences.