Portable Voice Recorder Professional Sound Dictaphone Voice Activated Noise Reduction Recording Pen Long Time Audio Recorder Features: 1. It adopts a zinc alloy shell, which has a good feel and is sturdy and durable. 2. Time stamp, automatically naming record files based on dates. 3. Real time monitoring and recording, supporting voice activation, recording with sound, and silent stop. 4. Multifunctional recording pen, capable of writing, MP3 player, and USB drive. 5. Wired earphone control, previous/next file button. 7. Automatically detect the battery before power outage, and save the record file when the battery is low. 8. One click recording, one click saving recording files. 9. Intelligent noise reduction, DSP acoustic processing, and clear recording effect. 10. Used for meetings, training, learning, business, etc. Specifications: 1. Product name: Recorder 2. Product model: Q91 3. Recording format: WAV 4. Playback format: MP3/WMA/WAV 5. Battery capacity: 180mAh lithium battery 6. Recording time: 15 hours 7. Playback time: 10 hours 8. Charging time: 2 hours 9. Memory expansion: up to 128GB TF card (excluding) 10. Recording quality: 384kbps, 192kbps 11. Headphone jack: USB 12. Charging port: USB 13. Product size: 148 * 13mm 14. Net weight of product: 23g 15. Product material: zinc alloy Packaging includes: 1 * Recording pen 1 * User manual 1 * Earphones 1 * USB data cable