The Panasonic RP-HJE125 Ergofit in-ear headphones are designed for a comfortable, secure fit within the ear canal. These wired earphones feature 10 mm dynamic drivers that deliver a frequency response from 10 Hz to 24,000 Hz, ensuring a balanced sound across a wide range. With an impedance of 16 Ohm and a sensitivity of 97 dB/mW, they operate efficiently with most portable devices via the standard 3.5 mm mini-jack connector. Constructed from lightweight ABS plastic, the earbuds weigh only 4 g each, making them easy to wear for long periods without fatigue. The red finish adds a touch of color to the sleek design, while the 1.1 m cable provides enough length for comfortable movement. To ensure the best possible seal and fit for different users, the package includes multiple sizes of ear tips.