AudiOHM CFT Fitness Headphones with In-Line Microphone for Handsfree Calling and Flexible Neckband (Green) by GOgroove - Works with Apple iPhone 6s, HTC One M10, Samsung Galaxy S7 and More BUILT IN MICROPHONE  Answer calls when you are on the go with the in-line mic and multi-function action button so that you can handle a call with a simple press of a button COOMFORTABLE  Ergonomic design for active and casual listening so you can play audio from your favorite media device, whether you're on the move or relaxing at home NECKBAND DESIGN  The lightweight flexible neckband and angled earbud design provide you with a reliable hold to prevent interruptions to your activities TECH SPECS  Speaker power: 5mW; Driver: 10mm full-range; Impedance: 32 Ohms; Frequency response: 20Hz-20KHz; Audio input: 3.5mm audio port; Cable length: 45 in; Dimensions: 6 x 5 x 1.75 in 3 YEAR WARRANTY  A 36 month warranty is provided on all GOgroove headphone products. If you have any questions/concerns, reach out to our friendly California-based customer support