1. [Call Recording]: Exclusive new technology eliminates the need for call amplification. The built-in electromagnetic sound pressure sensor ensures clear recordings, solving the issue of iOS systems not being able to record calls. 2. [Magnetic Adsorption]: Built-in strong magnetic ring, high suction power, stable adsorption, prevents jarring, ensures clear recording. Supports iOS/Android systems (only supports phones with magnetic wireless charging function). 3. [Easy to Use]: One-click recording. After attaching the device to your phone, press the button to the middle for voice-activated recording; press to the top for normal recording; press down to stop and save; automatic saving on low battery. 4. [Automatic Timestamping]: After recording, the time is automatically generated, and the file is named in a time format (e.g., 20231108010000.wav), making it easy to organize and search for files. 5. [OTG Link Support]: Connects to a mobile phone to view recording files without needing a computer. Allows for file management anytime. (Only supports Android phones with OTG function and requires an OTG adapter). 6. [Versatile Use]: Suitable for call recording, general recording, conference recording, classroom recording, interview recording, and more. Standby Battery Life: Approximately 95 hours (varies depending on capacity) Standby Playback Time: Approximately 50 hours (varies depending on capacity) Battery Capacity: 500mAh Charging Time: 3 hours Attachment Method: Magnetic suction Color: Gray-black Material: Plastic Specification: 32G Package Contents: 1 x Voice Recorder Pen 1 x USB Cable Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3cm.