Zivigo Bluetooth Earbuds Wireless Headphones with Noise Cancellation, ipx4 Sweat Proof, Up to 7 Hr Talk Time, Compatible with All Bluetooth Devices (Black) LIFELIKE SOUND QUALITY With V4.1+EDR BlueTooth technology and a CSR 8635 chipset, this BlueTooth headphone makes music sound like a concert in your ear! with deep bass like never before, CVC6.0 noise cancelling technology reduces background noise, so you can focus on your favorite songs DOUBLE THE PAIRING POSSIBILITIES Wireless earbuds can pair with two different devices up to 10 meters away at the same time, so you can listen to songs on your phone and your tablet or on your phone and a friend's! NEVER MISS A CALL Wireless headphone as a built-in microphone, so it can be used as a headset. Get 8 hours of continuous talk time on a full charge! POWERFUL BATTERY 85mAH lithium-ion polymer battery takes just 2 hours to charge and provide 240 hours of standby time or 7 hours of continuous music play time VOICE PROMPT TECHNOLOGY is included with these BlueTooth ear buds to allow Notification of Incoming Calls and Phone Numbers.