Professional Hd Noise Reduction Recording Pen Voice Activated Digital Audio. Features: - 25 DAYS LONG-TIME RECORDING: One AA Battery of This Sound Recorder Allows Maximum 365 Days Stand by Time, Continuous Recording for 25 Days, 16GB Memory Can Totally Store Up to 1152 Hours (at 32kbs Quality) Recording Files. - ONE BUTTON OPERATION: Simply Click the Rec Button to Record and the Play Button to Playback. Never Miss an Important Moment. - NOISE REDUCTION: This Digital Voice Recorder Features De-noising Technology, Which Can Offer a More Natural Sound. - ULTRA SMALL DIMENSIONS - Conveniently Fits in Your Pocket or Purse for Easy Access and Portability. ONLY 65 X 25 X 26mm - INTELLIGENT VOICE RECORDING. When the Sound is Greater Than 30 Decibels, the Recording is Automatically Performed. When the Sound is Less Than 30 Decibels, the Recording Ends. - RECORDING ENCRYPTION. You Can Add a Password to the Recording File and Encrypt It to Protect Your Data. - AUTOMATICALLY RECORD TIME. Recording Generation Automatically Records the Recording Time. - OWN DELETE FUNCTION. Unneeded Files Can Be Deleted Directly Without Computer Operation. - POWER FAILURE PROTECTION. The File is Automatically Saved when the Battery is Low and then Turned Off. Specification: Shell Material Zinc Alloy + ABS Color: Black Battery: One AA Battery (not Included) Battery: 4600mAh Environmentally Friendly Polymer Lithium Battery Charging Time: About 10 Hours Long Standby: 365 Days Recording Time: 25 Consecutive Days Recording Mode: Boot Recording / Shutdown Saving / Voice Control Recording Format: WAV Music Format: MP3/WMA/WAV Sampling Rate: 48KHZ Number of Digits: 192KBPS Built-in Memory: 16GB Microphone: Built-in Number of Microphones: Two-way Recording Distance: 5m Size: 25*65*26mm Packing Included: 1 * Noise Reduction Recorder 1 * Box 1 * Headphones 1 * Data Line 1 * Instruction Manual . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.