Item Type: Digital Voice Recorder PenMaterial: Copper AlloyBuilt In Polymer Lithium Battery: 180mAhRecording Time:15HPlayback Time: 10HCharging Time: 2.5HRecording Format: WAVPlayback Format: MP3, WMA, WAVPackage List1 x Recorder1 x Charging Cable1 x Earphone1 x Instruction Manual1Premium Material: Digital voice recorder pen is made of metal alloy, CNC process manufacturing and baking lacquer electric transition process, to create durable, anti oxidation, anti scratch characteristics. 2Simple Operation: Digital voice recorder uses a blind operation type recording, a ball pen type mechanical bounce switch, press to start recording (pen cover lowered), then press to end recording and save (pen cover raised). 3Multipurpose: Digital voice recorder pen recording data, you can write while recording, to achieve two way recording, you can also replace the pen refill as a signature pen use. 4Noise Reduction Effect: Digital voice recorder pen using acoustic 8 core DSP noise reduction module, for environmental noise has a certain reduction effect. 5Connection Upgrade: Recording pen can be connected to OTG adapter to achieve cell phone management and file transfer, support for Android, for IOS cell phone connection, plug and play, simple and convenient. 6Easy to Control: Recording pen plugged into headphones can play music and recording files, support line control, headphone control to switch songs, fast forward and back, volume and confirm or delete.