Earfly Bluetooth Headphones V 4.1 Wireless Stereo Bluetooth Earphones In-Ear Sport Running Earbuds Built in MIC with Noise Cancelling for Sweatproof for Smartphones Bluetooth Devices SUPERIOR SOUND QUALITY: State of the Bluetooth V4.1+EDRs with extra heavy bass, Perfect realistic human voice sound of the bluetooth headphones adopt APT-X + EDR audio decode tech, that you'll be able to distinguish between each individual beat. NEWEST CVC 6.0 TECHNOLOGY: Noise Cancellation 6.0 reduces outside noises and enables clearer sound from microphone. You can get high quality, hands-free phone conversation even on the street or inside shopping mall. LONG TIME TO USE: Bluetooth Headset can deliver up to 7 hours of play time on a full charge and standby for 2 weeks. Not only for music, but Bluetooth still up which will income calls and phone numbers, so never miss a phone call. UNIVERSAL COMPATIBILITY: Compatible with for iPhone 6s / 6s Plus / 6 / 6 Plus / SE / 5s / 5c / 5, iPad mini / mini 2 / mini 3 / mini 4, iPad (4th generation), iPad Air / Air 2, iPod nano (7th generation), and iPod touch (5th generation) with the latest iOS 9 and Samsung Galaxy S7 / S7 Edge/ S6 / S6 Edge / and other Samsung device, HTC, Motorola, Nokia. BEST CUSTOMER SERVICE: Any problem of our productions, please contact with us . It will solve within 24 hours for return or refund. Your affirmation is the greatest motivation.