1. Multifunctional & Convenient: This device serves as a pendant, charm, keychain, or a mini recorder. Hang it on your chest, backpack, or keys. It's small, mini, waterproof, dustproof, and features a hard shell. 2. One-Button Recording: Simply record on and save off. With no light or sound, it offers silent recording and voice-activated recording. The intelligent voice-activated design pauses automatically when there's no sound, effectively saving memory and power. 3. Intelligent Noise Reduction: Clearly restore the human voice, even in noisy environments. Built-in dual-core noise reduction technology automatically reduces ambient noise based on different recording scenarios, ensuring clear details in the human voice. 4. Supports Mobile Phone OTG Playback: Comes with a special headset, doubling as an MP3 player. Recordings can be directly connected to the headset for listening, music playback, play/pause, track skipping, file deletion, and more. You can also connect via OTG to import and export files to your mobile phone (supports Android phones only). 5. Multi-Scenario Applicable: Suitable for interviews and forensics, meeting minutes, teaching lectures, business conversations, and various other situations. Recording format: WAV USB: mini USB2.0 Microphone: Condenser dual microphone core Memory capacity: 32G Color: Black Material: Plastic Package Contents: 1 x Recorder 1 x Charging cable 1 x Wired headphones 1 x Lanyard 1 x English 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 to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.