This professional voice recorder is perfect for capturing clear audio! Features: Metal and zinc alloy casing for strong drop resistance. Professional recording pen chip for HD recording. Timestamp feature automatically names recording files with the date. AGC function automatically adjusts for noise sources. Functions as a voice recorder, MP3 player, and USB flash drive. Supports voice-activated recording. Automatically detects low battery and saves recording files. One-button save and playback function. Plug in headphones to listen to music. USB adapter included. Long battery life. Built-in rechargeable 300mAh lithium battery. USB 2.0 connector for easy uploading and downloading of files. Color: Black Specification: Recording Format: WAV192kpbs Music Playback Format: WMAWAVMP3OGG etc. audio format Battery Recording Time: About 50 hours Battery Playback Time: About 35 hours Battery: 300mAh lithium battery, Charging time: Approximately 3 hours Noise Signal Ratio: 80db USB Interface: USB 2.0 High Speed 16GB: Saves recording time Approximately 188H, 32GB: saves recording time Approximately 376H Working Temperature: 5 to 40 degrees Recording Sample Rate: 48KHZ Headphone Jack: USB jack Compatible System: Windows 2000 & above Size: 54*34*7 (L*W*T)mm Net Weight: About 21g Package Included: 1 x Voice recorder 1 x English manual 1 x USB data cable