Portable Recording Studio - Universal - 8GB USB Pen Digital Sound Recorder Voice Activated Digital Audio Recorder MP3 Music Player Voice Activated Var AB Repeat Loop | Digital Sound Recorder(Black) Highlights Universal 8GB USB Pen Digital Sound Recorder Voice Activated Digital Audio Recorder MP3 Music Player Voice Activated Var AB Repeat Loop | Digital Voice Recorder(Black) 8GB Digital Voice Recorder USB USB Digital Activated Digital Audio Recorder MP3 Music Player Voice Activate Var AB Repeat Loop | Digital Voice Recorder Storage Capacity: 8GB for up to 576h long time recording, 96h short time recording OS: compatible for Windows 98 and above (XP, Vista, 7 8 10+), Mac OS 9.0 and Accompanied Battery: 2 * AAA batteries (not included.) Item Size: 10.7 * 3.3 * 1.6cm / 4.2 * 1.3 * 0.6in Item Weight: 28.5g / 1.0oz Package Size: 13.5 * 7.5 * 4.7cm / 5.3 * 3.0 * 1.9in Package weight: 142g / 5.0ozPackage List: 1 * Recorder 1 * Microphone 1 * Earphone 1 * USB cable 1 * Phone adapter 1 * Phone cable 1 * Audio cable 1 * Manual Instructions (English) Note: Phone and battery are not included. When the battery remains only two columns, the player stops and exits automatically.