Phiaton BT 100 NC Wireless and Active Noise Cancelling Neck Band Style Earphones with Mic Active noise cancelling technology cancels ambient noise by up to 95%. Sweat and water resistant, IPX4 splash resistance Certified protects earphones during Heavy workouts or light rain. Vibration notification signals when a call is being received or you have stepped outside the communication range. Everplay-X technology allows you to continue calling or listening to your music, even if the battery runs out or your audio Device is not Bluetooth compatible. Warranty: Continue to enjoy your bluetooth wireless device long after the Amazon return period expires. All Phiaton bluetooth wireless products come with a One Year Warranty and we stand behind all of our products with a US based customer service.