New open box item. Comes in original retail packaging. Box may show wear. Now listen here - Sumpan may be minimal in appearance, but this lightweight semi-earbud packs some big personality. Anything but boring, Sumpan boasts a colorful palette, a flexible on-the-go attitude, and unexpected features like a behind-the-neck hook function, and easy to wash (and even replaceable) earbuds. Sumpan isn't without the essentials either- like a 3.5 mm headphone jack, a built-in microphone and remote compatible with Android and Apple, and a tangle-free fabric cord to keep things neat and tidy.Frequency response - 20-20KHzCable Loop - wrap up your cable and fasten it in placeMicrophone and remote compatible with most devices using the unprotected 3.5mm standardConnectivity Technology: WiredFrequency response - 20Hz-20kHz and Impedance - 39 Ohms