Bluetooth Headphones, Bluebits Wireless Bluetooth Headphones V4.0 Lightweight Stereo Sports Headset In-Ear Sweat proof Earbuds with Mic/Apt-X Hands free Calling for iPhone and Android Smart Phones Premium Flexible 3D Wireless NeckBehind Unique Wearing Style Neck Strap with Clear Crisp Sound. Light Weight Flex Neck band. Bluetooth Version 4.0 with Supported Bluetooth Profiles: Headset, Hands-Free, Advanced Audio Distribution, Audio/Video Remote Control Talk Time: Up to 11 Hours, Music Time: Up to 10 Hours, and Standby Time: Up to 10 Days. Quality Sound Bluetooth Headphones. Bluetooth Headset for Any Occasion On the Go including Hands Free Driving, Walking, Running, Working, Gym, Exercise, Listening to Music and Easy to wear. You will not even know its there. Voice Guidance Allows Ease to Operate the Headset. Answer Calls with a Push of a Button. Works for iphone, 6,6s,5,5s,4, ipod and Galaxy.