SoundPEATS Bluetooth Earphones, Wireless 4.1 Magnetic Earphones, in-Ear IPX6 Sweatproof Headphones with Mic (Superior Sound with Upgraded Drivers, APTX, 8 Hours Working Time, Secure Fit Design)-Red [Built-in Magnet Design]: Convenient built-in magnets enable you attach the earbuds together when you don't need them. And it will present a fashionable sport look as well as avoid cable tangling together. [Outstanding Sound Quality]: 10MM drivers, APTX codec with CSR8645 bluetooth chips offer CD-like high fidelity sound quality. Bluetooth 4.1 technology enables quick transmission and smooth connection. The earphones are compatible with most Android/IOS/Windows devices. [Stellar Battery Life]: You will get 8 hours long lasting battery after only 1-2 hours charging (Working time varies from volume level and audio content). For safety sake, please kindly confirm the charging current of your adaptor is under 1A. Quick charging is not a good way to charge the earphones. [In-line Mic&Button Control]: Thanks to in-line mic and button control, you can enjoy hands-free phone calls, adjust volume and mange previous/next track conveniently. SoundPEATS provides 12 months hassle-free warranty to ensure the enjoyment of your purchase. [IPX6 Sweat Proof Build&Secure Fit]: Nano coating prevents damage from sweat, light rains and accidental splash, so you can freely enjoy running, jogging, hiking and other outdoor activities. There are 5 size of eartips (XS/S/M/L/XL) and 3 set of earhooks, you can choose the one for most comfortable wearing. You can also use cable buckle and cable clamp to fix the wire on your clothing.