Pkman&trade; [Intelligent Magnet Tech] Newest Wireless Headphones Sport Bluetooth Running Sweatproof Headphones/Headsets/Earbuds/Earphones for iPhone iPad iPod and Smartphones (Black) Magnetic Design:Completed with magnet at the end of each earplug wear it in a circle just like a necklace,without worrying about losing High Capacity Battery:Up to 7 hours talking time and playing time,compatible with iPhone,Samsung and other bluetooth-enabled devices CVC6.0 Noise Cancellation and Compatible with the iphone6,6s,samsung,and other devices Bluetooth V4.0 Technology:The bluetooth signal is more stable and transfer a clear stereo music sound Bluetooth Earbuds Warranty: All of this Headphones,We provide 30 days money back and 1 year warranty,any problems pls directly contact pkman OR Parkman US Online