The M604NB is a wireless Bluetooth headphone that emphasizes convenience, comfort, and extended battery life. Here’s a detailed look at its features:

• Design: The M604NB features a magnetic neckband design, which provides both a modern look and practical functionality. The magnetic aspect allows the earbuds to attach together when not in use, reducing tangles and making them easier to store or carry around.

• Battery Life: The headphones come with a 200mAh battery, offering a standby time of up to 250 hours. This long standby time ensures that the headphones are ready for use even after extended periods of inactivity. The actual usage time will depend on your listening habits and the volume levels used.

• Bluetooth Connectivity: Equipped with Bluetooth technology, the M604NB allows for wireless audio streaming. This feature provides freedom of movement and eliminates the clutter of cables. The headphones are compatible with most Bluetooth-enabled devices, such as smartphones, tablets, and computers.

• Sound Quality: While specific details about the audio performance aren't provided, such headphones generally aim to offer clear sound with a balanced mix of bass and treble. They are designed to deliver a satisfactory listening experience for various types of audio content, including music, podcasts, and calls.

• Comfort and Fit: The ergonomic neckband design enhances comfort during extended wear, and the headphones typically come with various ear tip sizes to ensure a snug and comfortable fit for different ear shapes.

In summary, the M604NB combines a practical magnetic neckband design with reliable Bluetooth connectivity and impressive battery longevity, making it a great choice for users seeking a comfortable and functional wireless headphone option.