1. The shell is made of metal and zinc alloy materials, with strong drop resistance. 2. Professional recording pen chip, high-definition recording. 3. Timestamp, automatically name recording files by date. 4. AGC function, automatically adjusts the noise source. 5. Recorder, MP3 player, and USB flash drive. Supports voice controlled recording and high-definition noise reduction. Detect low battery level and automatically save recording files. Play function, one click recording/saving. Remote control headphones, insert headphones to listen to music. The ultra-thin size of 10.6mm makes it easy to fit into wallets and pockets. Long battery life, continuous recording for 100 hours Built in rechargeable 800mAh lithium battery. C-type connector, convenient for uploading and downloading files. Large capacity USB drive function, built-in 64G large memory. Wide applicability, can be used for business, conferences, interviews, etc. Product Name: Recording Pen Recording format: WAV/MP3 Play format: WMA/WAV/MP3/FLAC/APE Sampling frequency: 48KHZ Recording Bit Size: 192KBPS Response frequency: 20-20KH Memory capacity: 64GB Color: As Shown Material: Metal Package Contents: 1 x AI Voice Recorder 1 x USB Cable 1 x Earphone 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.