Smart and Mini Voice Recorder (8GB) One Touch: Lift the button to record, lower it to save immediately. Smart Sensor: Records only when speaking, stops during silence. Automatic Save: Saves your file immediately before the battery runs out. Noise Isolation: Clear and pure sound thanks to smart filtering technology. Multi-use: Recorder + Flash Memory + MP3 Player (connects to mobile). Size: Only 4.5 cm (smaller than a thumb). Warranty Golden warranty for a full year (12 months) with immediate replacement against any manufacturing defects.