Presenting the Sony SP700N In-Ear Sports Headphones, the world's very first genuinely wireless noise-canceling earphones with splash-proof style. Geared up with a cushioned fit and sweat-resistance, these wireless earbuds are made to fill your exercises with your favorite music without getting in the way. Noise canceling innovation lessens sound from loud environments, leaving you with simply music. - Since 1st January 2018, according to research by Sony Corporation, genuinely wireless noise canceling earphones have IPX4 rating or greater for industry leading noise cancellation quality. - Interoperability and compatibility amongst Bluetooth gadgets vary. - Do not permit continuous contact with water or sweat. - Real performance differs based upon settings, ecological conditions, and use. Battery capacity decreases with time and usage. - Voice help function compatible with Android mobile phone (Google App) or iPhone (Siri). Bluetooth connection needed. Voice help and tailored sound functions need download of Sony|Earphones Connect app for iPhone from the App Store or for Android from Google Play. User should link compatible gadgets in order to manage operation. Topic to app terms.