How this Cordify Wireless Headset Works? Songs can ease nerve or relieve fatigue or activate action. It works especially great when it comes with an ergonomically-designed headphone featuring rich bass and crystal clear treble. Our headphones are equipped with latest Bluetooth V4.1 to avoid you ending up cable tangle from corded earphones, and with easy-to-reach button on right earplug, you needn't stop to skip songs or adjust the volume while at work or doing sports. Strong Features: Premium sound with rich bass and crystal clear treble In Ear Design, Noise Isolation with CVC 6.0 Comfortable, Secure Fit with Ergonomic design Latest 4.1 Bluetooth Technology Supports 6 Hours of Uptime Sweatproof, prevents moisture damage Super Compatibility Compatible with iPhone 6/6s, 6 Plus/6s plus, SE, 5, 5c, 5s, 4s, iPad Air, Mini. Samsung Galaxy S7, S6, S5, S4, S3, Note 4 3, HTC, Sony, LG, Other Smartphones, Tablets, Bluetooth-enabled music players and any device with Bluetooth connection. Package List Cordify Bluetooth Headphone S & L Ear Tips (M size included on earbuds) One Pair Extra Ear Hook Micro USB Charging Cable Quick Guide 100% Satisfaction Guarantee We happily provide all our customers with and full refund policy for each Cordify item, if you have any questions or comments, please contact us whenever.