Open-Ear Design, Unlike in ear headphones, it keeps you connected and aware of your surroundings. With an inline remote and built-in microphone on the headphone cord, take hands-free calls from selected smartphones while listening to music, wire headphones with microphone for laptop, PC The Open-ear also include a built-in remote that lets you adjust the volume, control the playback of music , and answer or end calls with a pinch of the cord Frequency response 60-18,000 hz, 95db SPL sensitivity. 16 Ohms Excellent Sound: Stereo headphone with excellent sound effect, 3.5mm plug compatible with all 3.5mm jack devices The fixed part of the earphone is a soft silicone material. It is not only suitable for your children, but also for many adults,Silicone hanger: large, medium, small, choose a size that suits you Open-Ear 3.5mm Jack Headphones,Sport Earbuds Wired with Microphone,for Work,Music, Gaming