With eVisa, you can enter at any one of the following:
1. One of the 3 International Airports: Yangon, Mandalay, Nay Pyi Taw
2. One of the 3 International Land Border Checkpoints: Tachileik, Myawaddy, Kawthaung
To exit from Myanmar, you can use any one of above stated International Airports, International Land Border Checkpoints and furthermore, the Htikee Land Border Checkpoint as well.