HELP! ! ! ! CS1955 non-invocable member 'sqlconnection' cannot be used like a method.

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C#

Cant seem to get my head around this error, any help greatly appreciated.

Non-invocable member 'SqlConnection' cannot be used like a method. Highlighted in Bold.

protected void Page_Load(object sender, EventArgs e)
{

}

protected void btnSearch_Click(object sender, EventArgs e)
{
string connectionStr = ConfigurationManager.ConnectionStrings["connectionStr"].ConnectionString;
using (SqlConnection con = SqlConnection (connectionStr))
{
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "spSearchEmployees";
cmd.CommandType = CommandType.StoredProcedure;

What I have tried:

Cant seem to get my head around this error, any help greatly appreciated.

Non-invocable member 'SqlConnection' cannot be used like a method. Highlighted in Bold.