Bluetooth Headphones Running QY8 Wireless Headphones Bluetooth Earbuds Noise Cancelling Built in Microphone w/Apt-X/CVC6.0 for iPhone 6 6S Plus iPad Samsung LG Android Cellphone Last Bluetooth Technology: Version 4.1 and CSR 8645 Chipset strengthen the signal and improve the audio quality remarkably. Also the maximum playtime of the headset is up to 7 hours, which can fulfill a full week of workouts or a full day of listening. Newest Nosie Cancelling Tech: Adopt the most advanced Bluetooth CVC6.0 noise reduction and listener fatigue reduction, the ear buds can eliminate the white noise and deliver a clean listening experience, offering you high quality sound enjoyment. Stereo Sound Experience: Sealing with unique Cavity Structure Design, twenty percent effective area increased in vibrating diaphragm and reducing wind and echo, this headset with built-in HD microphone provides you a high fidelity and pleasant sound. Comfortable Wearing: Comfortable and stable design for all levels of exercise make easy accessible on-ear controls when you keep moving and help you get rid of troublesome wires tangling while you control your music or calls. Easy-of-Use: Best wireless Bluetooth headphones for Cycling, Running, Gym with simple user interface, Compatible with iPhone 6 6S 6plus 5 5S 4S iPad, Galaxy S6 S5, LG G4 G3 and other Smartphones.