Features 1. EASY TO USE: Ballpoint pen type mechanical rebound switch, click to start recording (cap lowered), and press to stop recording and save (cap raised). 2. RECORD WHILE WRITING: Digital voice recorder pen allows recording while writing, supports dual functionality, and can be used as a writing pen with replaceable refill. 3. PLUG AND PLAY: Connect the voice recorder pen to an OTG adapter to manage and transfer files on compatible devices; supports Android and iOS devices with plug-and-play functionality. 4. WITH EARPHONE: Includes a headset for playing music and audio recordings. Supports inline controls for song navigation, playback, volume adjustment, and file deletion. 5. NOISE CANCELING: Equipped with an 8-core DSP noise reduction module to help reduce ambient noise during recording. 6. COPPER ALLOY CONSTRUCTION: Made from copper alloy with CNC manufacturing and coated finish for durability, anti-oxidation, and scratch resistance. Specification Item Type: Voice Recorder Pen Material: Copper Alloy Built-in Polymer Lithium Battery: 120mAh Recording Format: WAV Playback Format: MP3, WMA, WAV Package List 1 x Voice Recorder Pen 1 x Charging Cable 1 x Earphone 1 x Instruction Manual 3 x Pen Refill