Tone Generator EX is an audio tone generator. It provides following features:
● Frequency range from 20Hz to 22KHz.
● Can play 4 different waveforms: Sine/Square/Sawtooth/Triangle
● Auto-off timer.
● Playback running in background.
● Playback can be controlled from the notification drawer, lock screen or headset button without having to reopen the APP.
● Auto-pause on incoming call, alarm, etc.