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 call recording limitations on iOS. 2. [Magnetic Adsorption] A built-in strong magnetic ring provides powerful suction and stable adhesion, preventing jarring and ensuring clear recordings. Supports iOS/Android systems (only phones with magnetic wireless charging functionality). 3. [Easy to Use] One-click recording. After attaching your phone, press the button to the middle for voice-activated recording, press to the top for normal recording, and press down to stop and save. Automatic saving on low battery. 4. After recording, the time is automatically generated, and the file is named in a time format (e.g., 20231108010000.wav), making file organization and searching easy. 5. [OTG Link Support] Connects to a mobile phone to view recording files without needing a computer. Allows for on-the-go file management. (Only Android phones with OTG functionality are supported, and an OTG adapter is required). 6. [Versatile Applications] 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: 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 allowable measurement error is +/- 1-3 cm.