magento 2 base url and media url

$_objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $storeManager   =   $_objectManager->get('Magento\Store\Model\StoreManagerInterface');
    $currentStore   =   $storeManager->getStore();
/*********** Base url******/
    $baseUrl      =   $currentStore->getBaseUrl();


/*********** mediaUrl url******/
 $mediaUrl      =   $currentStore->getBaseUrl(\Magento\Framework\UrlInterface::URL_TYPE_MEDIA);