Bluetooth Headphones By NODE V4.1 Wireless Sport Stereo With Bass In-Ear Noise Cancelling Sweatproof Headset with Mic for iPhone 7 Samsung Galaxy S7 and Android Phones The Incredible in-ear design of this device blocks every kind of outer noise to let you enjoy the crisp HD bass sound quality Built with latest bluetooth 4.1 & EDR technology allowing it to connect with all bluetooth enabeled devices,including Smartphones from Apple and Android,Tablets,Smartwatches,Computers,Notebooks,MP3 Players and laptops.Upto 2 phones can be connected at the same time.The Built-in microphone makes is easy to take calls and talk with a single touch. Uses frequency range:2400.0-2483.5MHz which enable it to work from upto 10 meter distance. 6+ Hours of usage time.150+ Hours of Stand-By Time when fully charged.It takes only 1.5-2 hours maximum to be fully charged. The sweat-proof and soft silky material make this device easy to use while you workout at gym,go for running,cycling etc The noise reduction CVC 6.0 feature reduces unwanted ambient sounds using active noise control engineering lets you enjoy music without raising the volume excessively.