Type Ear coupling: On-ear (supra-aural) Primary application: General listening Secondary application: General listening Operating principle: Semi-open Audio Frequency response (TX): 20Hz - 21kHz SPL: Not specified Driver diameter: Not specified THD: Not specified Noise cancelling: No Comfort Weight: 3.17 oz. (90 g) Cable Style: Straight Length: Not specified Connector: 3.5mm Built-in mic: Yes Whether you're cruising through the city on your bike, or just hanging out in the park listening to your favorite tunes, Form 2i is the perfect companion These stylish, sleek headphones deliver an impressive and honest sound performance that lets you hear your music at its best

ENJOY QUALITY SOUND: With our on-ear headphones in your ear you can enjoy immersive clear and crisp sound produced by the 40mm driver, which are very clear with zero static or hissing even when turned all the way up, makes you focus on what you want to hear, enjoy your music, movies, and videos. LIGHTWEIGHT AND PORTABLE: Fordable and lightweight design make it convenient for you to carry, no matter wherever you go, you can enjoy your favorite music, movies, speech and so on. Besides, it also designed for saving your desk or backpack space. What is more? You will never have to complain about a messy desk or heavy bag anymore. ENJOY MAXIMUM COMFORT: This headphone comes with a memory-protein ear cushion that simulates human skin texture, ensuring more durability and lasting comfort. Besides, the adjustable headband perfectly fits any size of your head and ears, no matter the small heads of kids or big heads of adults, just enjoy the good times together.