Leyic Bluetooth Wireless Over-ear Stereo Headphones Foldable Headsets with Microphone for Music Streaming for Iphone 6s 6 5s 4s, Ipad, Ipod, Samsung Galaxy, Smart Phones Bluetooth Devices-black High Definition Stereo Headphones, NEW V4.1 Bluetooth Wireless, Foldable Hi-fi Stereo with Noise Reduction Microphone & Rechargeable Li Battery, easy pair with Apple Iphone 6 6s 5, Ipad air, mini and Samsung Galaxy, and More Smart Phones. Bluetooth V4.1 technology - Best Audio Performance - Hi-Fi - Stereo - Sports - Wireless Bluetooth - Over the head, easy to sync and pair within seconds. Built-in rechargeable lithium-polymer battery enables up to 7-8 hours of talk time or audio playback. Foldable frame and comfortable pad, allows long time use and easy carriage. Built-in Mic for hands free call in windy or noisy environments, easily switch between songs and incoming calls.