Colorful HiBy W4 portable headphone amplifier delivers high-resolution music playback to balanced and wireless headphones

The HiBy W4 portable HiFi headphone amplifier delivers high-resolution music playback to Bluetooth wireless headphones as well as to 4.4 mm balanced and 3.5 mm unbalanced headphones.

A 1,500 mAh battery provides a runtime of up to 5.0 hours when driving balanced headphones or 6.3 hours when driving unbalanced headphones, according to the company. The W4 can be connected wirelessly over Bluetooth 5.4 or wired over a USB-C connection to digital audio sources, such as a smartphone, laptop, or digital audio player.

The Bluetooth connection supports the aptX Adaptive/HD/Lossless, LDAC, AAC, and SBC audio codecs, while the wired connection supports DSD512 and PCM 768 kHz codecs, enabling broad compatibility with standard-quality and high-resolution music. Owners can adjust settings using the physical volume buttons, a control dial, and a 2-inch color touchscreen.

The W4 can be attached to MagSafe-compatible smartphones using an optional magnetic kit or clipped to bags using the included removable clip. It measures 66.15 x 65.1 x 21.5 mm (2.60 x 2.56 x 0.85 in.) and weighs 93.3 g (3.3 oz.).

The HiBy W4 portable amp has an MSRP of $99 and is available for purchase from HiBy. Readers can browse the company’s other audio products in the HiBy store on Amazon.