charge can record more than 20 hours. 8GB memory, it can be connected to computer to download audio and music. Safe Energy Saving: With password boot function to protect internal data of the machine and prevent leaks. If you don't use it for a long time in standby mode, it will shut down automatically and save power. Timing shutdown can be set. Strong Compatibility: It can connect the computer to transfer files, compatible with Windows XP/7/8/10, Mac. Supports OTG function and can connect to mobile phone and tablet. (Note: Mobile phone must support OTG.) Multi-Function: It is not only a voice recorder, but also a MP3 music player, built-in loudspeaker for external sound. In addition, it also supports recording monitoring and telephone recording. Specifications: Color: Black Material: ABS Memory: 8GB Display: 0.8inch LCD Screen, 128*64 Recording Format: WAV/MP3 WAV Format: 512Kbps, 1536Kbps MP3 Format: 64Kbps, 192Kbps Music Format: MP3/WMA/OGG/APE/FLAC/WAV/AAC-LC/ACELP USB Interface: USB2.0 Audio Interface: 3.5mm Support Extension: TF Card(Max. 128GB) Battery: Built-in 3.7V, 250mAh Lithium Battery Operating System: Windows XP/7/8/10, Mac, Android, iOS System Languages: Simplified Chinese, Traditional Chinese, English, Japanese, Czech, Greek, Danish, German, Spanish, French, Italian, Hungarian, Dutch, Norwegian, Polish, Portuguese, Brazilian, Russian, Slovak, Finnish, Swedish, Turkish, Roman, Indonesian Working Temperature: -10-40 Item Size: 9.2 * 3.5 * 1.2cm/ 3.6 * 1.4 * 0.5in Item Weight: 44g/ 1.6oz Package Size: 13.5 * 7.6 * 4.7cm/ 5.3 * 3.0 * 1.9in Package Weight: 125g/ 4.4oz Note: TF card is not included in delivery. Packing List: 1 * Recorder 1 * Microphone 1 * Earphone 1 * USB Cable 1 * User's Manual