The Cellularline Music Sound are on-ear headphones designed for versatile listening, offering both wireless and wired connection types. They utilize Bluetooth 5.3 to maintain a stable wireless connection within a 10-meter range, though you can also use the included 1.2-meter cable for wired playback. The integrated microphone and dedicated control buttons allow you to manage volume, handle music playback, and answer or end calls without reaching for your device. Built from lightweight ABS plastic, these headphones weigh 160 g and measure 178 x 77 x 235 mm, making them easy to wear during extended sessions. The audio performance is supported by a frequency response of 20 Hz to 20,000 Hz, a sensitivity of 118 dB SPL/mW, and an impedance of 20 Ohm, while the RCA output jack provides additional connectivity options. A 300 mAh battery powers the device for up to 16 hours of playback on a single charge. When the power runs low, the USB Type-C port allows you to fully recharge the battery in about 2.5 hours, ensuring they are ready for your daily commute or home use.