I bought it online.that’s why I was lil bit afraid.but now I am satisfied with this product.its connects with the device via Bluetooth and easy to pair with the laptops.notebooks.& mobiles. They say its range of connectivity is approx 8-10 meters and ya its true but only with phone bcz its also depends on the connected device that’s why it doesnt stand correct with the laptop sound quality is not so impressive .it discharge in less than 1 hour that disappointed me very much but as a sport equipment. Its good like when you are running .or playing then its good for you but don’t expect so much .