64GB Large Memory: With a spacious 64GB built-in memory, our digital voice recorder can store up to 900 hours of high-fidelity recordings. It takes merely 1.5 hours to get fully charged and can record continuously for up to 25 hours, making it perfect for lecture series, interviews, and long meetingsProfessional Design: Crafted from sleek, durable zinc alloy, this recorder device features a convenient carry design that makes it extremely easy to take along. Its a great gift option for your teachers, student friends or business associates, serving as a reliable recording assistantCrystal Clear Sound: Vandlions latest upgraded 2159 intelligent recording chip features advanced DSP noise reduction technology, effectively eliminating 95%+ background noise during recording. With a high bit rate, it delivers clear and natural sound, especially suitable for those who demand high sound qualityOne Touch Recording: With a button slide to turn on the switch, the voice recorder will start or save recordings. It automatically saves the file even when the battery runs out, so there's no need to worry about losing any recordings. Want to playback your recordings? Transfer files via USB-C to your Mac, Windows PC, or Android phoneVoice Activation: When switched to this mode, our voice-activated recorder automatically starts recording upon detecting sound and pauses when there's none, thus effectively reducing silent segments, saving memory and extending battery life (Voice activation is disabled by default. Please refer to the manual for activation)Warm Service: We are happy to provide lifetime support for all our customers. Should you have any questions or run into any problems, don't hesitate to reach out to us. Rest assured that you'll receive a prompt response within 24 hours