Item Type: Digital Voice Recorder PenMaterial: Organic Light Emitting Diode, Zinc AlloyRecording Format: WAVMusic Format: MP3 WMA WAVCharging Time: 1HBuilt in Polymer Lithium Battery: 120mAhPackage List1 x Digital Voice Recorder Pen3 x Refill1 x Charging Cable1 x Headphones1 x Instruction Manual1Writing and Recording: Digital voice recorder for writing and recording, classroom and meeting recording in hand. Comfortable grip, fluent writing, replaceable refills. 2Noise Reduction: Digital voice recorder pen adopts intelligent noise reduction chip, telepresence technology, highly restore lossless original sound. 3Time Stamp: Voice recorder has a built in time chip to record the time of document generation and end time, which is accurate to the second and convenient to organize and improve the credibility. 4Intelligent Control: Digital voice recorder opens voice activated recording mode, only when there is sound automatically recording no sound automatically pause, saving storage space. 5Small and Portable: Digital voice recorder pen can be clipped in pockets, office bags, books, etc., easy to carry, not easy to lose.