WordPress htaccess重定向野生重定向

I am using WordPress WooCommerce,

My product links are like this

http://example.com/product/tshirt123

How do I code the htaccess so my links will be redirected to http://example2.com/product/tshirt123 ?

Currently I have this code below in my htaccess but it doesn't redirect http://example.com/product/tshirt123 to http://example2.com/product/tshirt123

RewriteCond %{HTTP_HOST} ^example\.com$ [OR]
RewriteCond %{HTTP_HOST} ^www\.example\.com$
RewriteRule ^product\/?(.*)$ "http\:\/\/example2\.com\/product$1" [R=301,L]

How should I change so it will redirect links like:

http://example.com/product/tshirt123 to http://example2.com/product/tshirt123

Thanks in advanced for any code or help

Just add this to the top of your '.htaccess' file and NOT after WordPress default rules.

RewriteEngine On
RewriteRule ^(product)/(.*)$ http://example2.com/product/$2 [R=301,L]