Higsound: Audio Recorder is a free Android application developed by sparkwaker that allows users to record high-quality audio in WAV format, with an optimal sampling frequency for their device. The app can be used to record personal notes, meetings, concerts, lectures, and more. It also doubles as a microphone, allowing users to transmit audio in real-time through their device's microphone and play it instantly on external audio devices like headphones or speakers.

The app is designed with user-friendliness in mind, and you can easily manage your recordings by playing, renaming, deleting, and sharing them at any time. The recordings are stored in the internal memory of your device, and there's no time limit on the recording length. The app is compatible with Android versions 5 or higher.