BestGot Headphones Created with a Unique Design, BestGot Headphones features a stylish look and acoustic features to maximize the sound range. Answer calls ,Skip songs and adjust volumes with the controller, While a built-in signal wire for the microphone reduces interference, to provide more stable calls. Fully compatible with most Android deveces, Partially compatible on IOS devices. For Calls: Short press to answer/hang up. For Music: Press pause/play. Included Accessories 1.Headphones 2.Cable with in-line control and microphone Note: Please pull out both sides of the headphone out of the appropriate distance, and then wear headphones. Note do not put the headphone on the head and then pull out the extension, otherwise it is easy to damage the headphone. Specifications: Driver : 40mm Directivity: Omni-directional Sensitivity: 103dB±3dB requency Response: 20Hz~20KHz Impendance: 32Ω±15% Plug: 3.5mm Cord Length : 4.3ft / 1.3m MICROPHONE Sensitivity -42dB±4dB Impendance ≤2.2KΩ Frequency Response 75-16,000Hz Button Function: play or pause the music. answer or end the phone chatting. Volume control +/- According to the buyer's requirements, in order to make the sales price more competitive, we cancelled the cloth bag accessories(expected after June 2020).