8GB Lightweight but Hard Metal Case:Friends, welcome to . This new model V59 digital voice recorder has 8GB large built-in memory which can store 750 hours recording at 192kbps, or 568 hours recording at 256kbps, or 288 hours recording at 512kbps.... Besides, the aluminum alloy metal case, which is both hard and light, and the shimmering process ensure a balance of elegance, style and quality With built-in large rechargeable battery of 1050mAh, it can record up to 60 hours of continuous recording (512kbps) after fully charged for 6 hours. Ideal for extended use scenarios that require repeated listening, organizing, and editing, such as classes, interviews, multi-day meetings, and college lectures Intuitive One-touch Recording File Management:Separate record button allows you to record/backup just by swiping up/down. (The recording file name will be named with date and time) Then play locally or on headphones/computer. (Playback on headphones or computer sound better than playback on local speakers) Voice Activation Mode: Reduce Unnecessary Audio Gaps:Recording in Voice Activated Mode: Automatically start recording when sound is detected, pause due to low or silent sound. Note: Voice activation may miss delicate sounds, so it is not recommended for important occasions (voice activation is disabled by default, please check the manual to open it)