Universal 4.1 Bluetooth Wireless Stereo Headphones with Built-In Microphone Top Quality Universal 4.1 Bluetooth Wireless Stereo Headphones with Built-In Microphone for iPhone 6S, iPhone 6S Plus, iPhone 6, iPhone 6 Plus, iPhone 5, iPhone 5C, iPhone 5S, iPhone 4S, iPad, iPod, LG G2, Samsung Galaxy S6, S6 Edge, S5, S4, S3, Note 5 and more COMPATIBILITY: (iOS 9 and above & android devices) iPhone 6S, iPhone 6S Plus, iPhone 6, iPhone 6 Plus, iPhone 5, iPhone 5C, iPhone 5S, iPhone 4S, iPad, iPod, LG G2, Samsung Galaxy S6, S6 Edge, S5, S4, S3, Note 5 and more PERFORMANCE - The audio quality is high-fidelity for critical music listeners. It also resonates stereo music with clear speech and hi-definition surround sound audio for an enjoyable experience anytime, anywhere. It has a CVC noise cancellation technology that reduces outside noises for a clear and crisp microphone ability. BLUETOOTH - Equipped with 4.1 bluetooth range. This wireless headphones can be used easily with any smartphone and other devices that also comes with bluetooth. The headset itself is rechargeable too and has a battery that can last 5 hours of continuous music and the standby time is up to 120 hours. TIPS - A short press of "+" will play the next song. A long press of "+" will turn up the volume. A short press of "-" will play the previous song. And, a long press of "-" will turn down the volume.