Morul U5PLUS Magnetic Sport Waterproof Bluetooth In-ear Headphones with Mic, Red Magnet Attraction: Lightweight magnet at earplugs make the Wireless Headphones as a circle, hang around the neck like necklace to avoid losing in the movement. Waterproof Ipx7: Advanced nano-coating waterproof technology can prevent headphones because of moisture caused by short circuit. such as water, sweat, milk, coffee, wine,,, Also provides protection from rain,dust,debris and sweat, but Not for SWIMMING and DIVING. High quality sound: Built-in HD Microphone with CVC6.0 Noise Cancellation Technology, reduces outside noises, enable clearer microphone's sound, and ensures Stereo Music Sound and Strong Signal. Comfortable in-ear design: There are 3 pair ear-hooks in packing box which you could use them to adjust the headphone into a super comfortable position, the secure design is very comfortable, completely fits your ear. One year warranty, 30 days returned, due to accident caused by headphones damage, we will replace a new one.