For a remake of a classic arcade game for the Android mobile platform I need 2 sound effect files with game sounds, one is meant for an energy shield effect (might sound similar to the laser swords in science fiction movies), one is meant for a jetpack effect. The sounds must be unique, and I must be able to retain all rights to the sound files. Length of the sound files should be ~2s and it should not sound weird if the sounds were repeated a few times to e.g. let the jetpack effect run 10s. Output format should be .ogg, but .mp3 or .wav would also be ok.