KEDSUM Bluedio Lightweight Sports Headphones Bluetooth 4.1 + A2DP technology Lets you wirelessly connect to compatible devices, such as, iPhone 6s/iPhone 6/6 plus/5s/5c/4s/4c/3/2 iPad, iPod, Android Smart phone; Samsung Galaxy S4/S3 Note2/3; Galaxy Tablet; Nokia Toshiba Sony and Blackberry Smart phones and other devices; most Mac and Bluetooth-enabled Tablet PC laptops and desktops. Bluetooth 4.1 is the most advanced Bluetooth technology and offer grate audio performance! CVC6.0 Noise Cancellation Adopt the most advanced bluetooth CVC6.0 noise cancellation,can accurately distinguish the difference between voice communication and noise,and judge it,makes you still enjoy a clear sound when you are in the noisy occasion. Built-in Microphone Allows clear communication,can be used as a headset. Music and phone can be easily controlled. Digital noise cancellation technology. Voice Control and Voice Reminder Just Say "Yes" or "No" to pick or reject call.Combine with 2 Languages Voice reminder function(Press the button "MFB" and "-" together for 3 seconds, switch the language from English to Chinese, or Chinese to English),Prompt the newest state of headset with vocal. Package Listing: 1 x Bluetooth sports headset 1 x USB Charging Cable 1 x User manual 3 pairs x Silicone ear tips (S/M/L) Come with retail box!