Welcomeuni Waterproof Earphones In Ear Earbuds HIFI Sport Headphones Bass Headset With Mic (Black) In Ear / Earhook Stereo Earphone with Mic for Mobile Phone when you are running!! 1. Memory Wire design for sports! Waterproof: IPX5 grade 2. Cable in TPE materails: soft and durable, that can withstand intense movement. 3. Frequency response :20-20000Hz ; Maximum power:10mw 4. Outdoor sensitivity:102db/mw ; Plug Standard: 3.5 mm