B1 battle droid (Earth-2042)

"Roger, roger."

- Typical response of a B1 battle droid

B1 battle droids, also referred to as standard battle droids or clankers, were the most widely used battle droids manufactured by Baktoid Combat Automata and Baktoid Armor Workshop, and were the successor to the OOM-series battle droids. Even though they were widely produced and deployed, the B1 battle droid was flimsily designed and easy to destroy, and was only truly successful in large numbers. Early versions of the model also required the use of a Central Control Computer, but despite these weaknesses they saw extensive service as the mainlines soldier of the Trade Federation's mechanized droid army.

Source

 * https://starwars.fandom.com/wiki/B1_battle_droid.