<strong>❤ Warranty Policy<strong/>:Backed by a 12 Months Warranty & Carefree Service for Every Purchase <br/><br/> <strong>If you have any issue with our headset at any time, please always contact us first before leaving feedback/review.:<strong/> <br/> We will strive to fix the issue to your full satisfaction Guaranteed ! <br/><br/> <strong>Compatibility<strong/>: All iPhone Models - iPhone 6S, 6S Plus, 6, 6 Plus, 5S, 5C, 5, 4S, 4 Nano 7.Please buy a 3.5mm jack adapter if you want to use for iPhone 7/7Plus/7S/7S Plus/8/8Plus/iPhone X. <br/> All iPad Models - 4 with Retina Display, Mini with Retina Display, Mini, 4, 3, 2, 1, Air; <br/> All iPod Models - Touch, Nano, Shuffle, Mini, and All Other Apple iOS Models; <br/> Other Models - Samsung Galaxy S8 S7 S6 S5 S4 S3, Note 8 6 5 4 3; HTC M9 M8 M7; LG Flex 2 G5 G4 G3 G2, Android, and Windows Smartphones and Tablets, Computers and Other 3.5mm Audio Devices. <br/><br/> <strong>●How to use Smart Button in-line Control<strong/>: <br/> Press: Answer/end phone calls <br/> Long Press: Reject phone calls <br/> Press Once: Play/pause music <br/> Press Twice: Next track <br/> Press Three: Previous track <br/> <strong>●Specification<strong/>: <br/> Brand name: SKYCABLE <br/> Speaker dimension:φ10mm <br/> Impedance: 16Ω <br/> Sensitivity: 100dB S.P.L.at 1KHZ <br/> Rated power: 3mW <br/> Power capability: 30mW <br/> Frequence response : 20Hz-20,000Hz <br/> Cable length: 1.2±0.15m <br/> Plug type: φ3.5stereo <br/><br/> <strong>Key settings<strong/> Play/Stop the music: press the middle button <br/> Answer the call: Click the middle button <br/> Hang up the call: Press the middle button again <br/> Reject the call: Press the middle button for 2 second <br/> Next track: Triple click the middle button <br/> Previous track: Double click the middle button <br/> Control the volume: [+] [-] volume button