1. Powerful: incoming and outgoing calls can be recorded, you can record both sides of your voice calls;
2. Completely free, and support every model of Android phones version 2.1 and above;
3. The recorded voice sounds clear, you can use the app built-in playback and easily export your recorded calls to the SD card, and send by email, WhatsApp or other means;
4. Automatic recording to mp3 format with built-in playback.