Laister Black Wireless Bluetooth V4.0+edr Neckband Sport Stereo Universal Headset Headphone for Sweat-proof,noise Reduction , Echo Cancellation , Voice Guidance,stereo Bluetooth Earphones Earbuds with Aptx,superior Comfort Wearing, Compatible with Iphone 6 6 Plus 5 5s 4 4s , Samsung Galaxy S6 S5 S4 Note 3 4 and Other Smart Phones Connects up to 2 active Bluetooth devices. Microphone, Playback Controls, Calling Functions, Volume Control Magnetic ear buds snap into place when not in use; music controls on neck strap Works with Android, Apple, and other Bluetooth enabled devices. Exceptional audio with noise suppression and echo cancellation Convenient power slide switch Unique around-the-neck design that`s lightweight and comfortable for all-day use