Item Type: Digital RecorderMaterial: Aluminum AlloyColor: BlackBattery Type: Built in 230mAh Lithium Battery (Included)Recording Folder: 999 Recording FilesRecording Format: WAV FormatRecording Power: 10mA-15mARecording Sample Rate: 32KHzRecording Bit Speed: WAV (128kbps)Playback Format: MP3, WAV, WMA and Other FormatsHeadphone Interface: 3.5pie Stereo JackExternal Memory Card Capacity: 4GB-128GB (Not Included)Built in Mic: Omnidirectional Capacitor MicSupport System: For Windows XP, for Windows Vista, for Windows 2K, for Windows ME, for Windows 98 (Need to Install Driver), for OS X 10, for Windows 7, for Windows 10Package List1 x Digital Recorder1 x Data Line 1 x Earphone1Noise Cancellation: Digital recorder is equipped with a powerful DSP noise reduction chip and a full range of condenser microphones to automatically reduce ambient noise and record and play back superior sound with clarity. 2High Sensitivity Microphone: Digital recorder uses a 360 degree ultra sensitive stereo microphone to catch clear sound from up to 30 feet away. Use for lectures, meetings, classrooms, homes, cars, and more. 3Stylish Appearance: Mini digital voice recorder features a high accuracy design, stylish screen, and metal casing for a comfortable touch. 4Long Battery Life: Digital recorder has a rechargeable 230mAh battery (up to 11 hours of continuous recording). It takes only 1 hour to arrive the maximum charge. 5Wide Compatibility: Compatible with for Windows, for OS X, and with for Android smartphones via OTG cable (not included in the package). 6Easy to Operate: Recording device is easy to operate, press record, save button to start, save recording. 1.9in HD color display for easy operation. Built in speaker, can be played directly. (Listen better with headphones) 7Auto Save, Memory Card: Recording device can automatically save files in the event of a power failure, external Memory Card card high capacity memory, up to 128GB flash memory support (the product does not include Memory Card card)