Into a bar shaker with ice add tequila, lime juice, Splenda simple syrup, fresh squeezed orange juice, and orange bitters
Cover and shake well to combine
Wet the edge of two rocks glasses with lime juice and rim with kosher salt or Tajin (if you're feeling particularly fancy and like a little kick). If you like yours on the rocks, add ice.
Strain cocktail into both glasses, garnish with a lime wheel, and enjoy!