Eoqo Bluetooth Headphones Wireless Earphones for Running with Mic Bluetooth 4.1, aptX, CVC 6.0 Noise Cancelling, Sweat Proof White Color Utilizes CSR 4.0 Technology, the Swift headphones ensure high-fidelity stereo music and clear speech via Noise reduction. Great for Exercise and Runing.These headphones will not fall out and have an operating distance of 10m! Exercise-proof & Sweatproof design guarantee 100% Stable and Comfortable when exercising, running, climbing, driving, skating,camping, fishing and other outdoor sports. Small,medium and big size earhooks included. Universal compatibility:Works with iPhone, Android Smartphones, tablets, iPod touch, and other Bluetooth devices Multi-pairing: It can connect with 2 cell phones or tablets simutaneously. Simple-to-use, control all functions of your music (volume, sound, song selection) and calls from your phone via our simple-to-use user interface on the headphones themselves.