JNB J1 Ultra-light Best Sports Wireless Bluetooth Headphones - Noise Cancelling Earbuds with Microphone(Red) IMMERSIVE WIRELESS SOUND - Bluetooth V4.1 headphones with CSR APT-X ensure Hi-Fi stereo sounds & CVC 6.0 for noise cancelling. 12-months warranty. PERFECT and SECURE FIT - Ergonomics design with 2 pairs of memory foam earphone tips and 3 sizes of removable extrasoft EarWings. (And include triple flange tips and 3 sizes of columbia silicone tips) SWEAT and WEATHER PROOF - Water resistance function in IPX7 level; Excellent for sports and workout. LONG LIFE BATTERY and FAST CHARGE - Inset double batteries at the earbuds; 10 hours for talking/ playing and 240 hours for standby; Appr. 2 hours to fully charge the battery. ULTRA-LIGHT and MAGNETIC FIXXING - Only 13.8g weight; And magnetic earbuds for convenient wearing.