Aobbi&trade;Wireless Bluetooth Sport V4.0 Lightweight Stereo Sports Headset In-Ear Headphone Earphone for Smartphones (Black) Bluetooth Version 4.0 with Supported Bluetooth Profiles: Headset, Hands-Free, Advanced Audio Distribution, Audio/Video Remote Control Premium Flexible 3D Wireless NeckBehind Unique Wearing Style Neck Strap with Clear Crisp Sound. Light Weight Flex Neck band. Talk Time: Up to 10 Hours, Music Time: Up to 8 Hours, and Standby Time: Up to 360 hours. 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 it's 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, ipad and Galaxy.