***How to adjust W4 volume adjustment range***

Go to:

Settings > About > Press the version number 5 times in succession.

Once this is done, on the bottom of the settings menu, developer options should appear. Press into developer options (do not press the slider), and you will be able to disable the volume lock.

Dedicated UnCharge lever switches power supply in USB mode, allowing the W4 to continue running off its own battery, even with the USB connected, reducing background and phase noise and reducing power draw from your devices.

Supports all UI functions - play/pause, pairing, filter settings, etc can all be operated intuitively and directly via the touchcscreen.

Supports album art display in Bluetooth connection mode, providing a clear view of the song information.

The flagship-grade Qualcomm QCC5181 Bluetooth core supports Bluetooth 5.4 for faster and more stable connections. It supports the new low-energy Bluetooth audio technology for better performance at the same power consumption. Whether for music listening, games, or phone calls, enjoy the latest in low-latency, high-quality audio.

The W4 supports Snapdragon Sound, all the main high bitrate Bluetooth audio codecs (aptX Adaptive/aptX lossless/aptX HD/aptX/LDAC/AAC/SBC) to achieve high-resolution audio output over wireless transmission.

Coupled with the low-loss power architecture, enjoy long playback times even on highly demanding codecs. The W4 also supports playback while charging to be used as a wired headphone amplifier at home.

Two Cirrus Logic flagship grade HiFi DACs decode and aplifies the left and right channels independently, raising signal to noise ratio and channel separation  significantly. This results in a cleaner, more 3-D sound with greater dynamics, higher fidelity, and more detail.

Dual independent 45.1584 and 49.152MHz audio oscillators are dedicated to 44.1x and 48x sample rates, each with femtosecond-grade precision. These give the cleanest, most accurate system clocks for all audio samples - reducing jitter and increasing accuracy.

The 4.4mm balanced port outputs up to 475mW of driving power.

Comes in a standard or a magnetic backplate version.

The standard version comes with a metal clip for easy wear. The clip is detachable to use as a dongle with a flat, magnetically active backplate which is compatible with Apple MagSafe accessories.

You can turn on the car audio optimized mode through the HiByBlue app (via app store/Google Playstore). Once the W4 is connected to the line input of the car via 3.5mm, the W4 will power on and off with the car, saving battery life.

The W4 supports microphone input in the Bluetooth connection mode. Using "Clear Voice Capture" call noise reduction technology, a short press of the power button answers calls, offering ultimate convenience and clarity.