Features: One button to record, easy to operate and saving to ensure you dont miss any important information. Support lots of functions such as voice control recording. Design with 2 types of interface - USB and Micro USB, which can be connected to computer directly and connect to mobile phone with OTG function. Mini and compact size - 60 x 21 x 9.5mm/2.3 x 0.8 x 0.3in, super convenient to carry. Built-in 170mAh rechargeable Lithium battery, convenient to recharge and record up to 9h after fully charged. And 8G memory card can save up to 48hrs voice file. Free to use this device as music player by insert the earphone, it also can select the loop playing mode. It's a prefect gift for students, professor, teacher, businessman, writer and blogger, anyone who loves to record! Specification: Model: 002 Memory: 8G Product Size: 60 x 21 x 9.5mm/2.3 x 0.8 x 0.3in Record Format: WAV Music Format: MP3,WAV,WMA Frequency: 48KHZ Bit rate: 32kbps-192kbps Recording Time: About 48hrs (8GB) Battery: 170mAh Lithium Battery Working Time: 9hrs (recording), 5hrs (playback) Charging Time: About 1 hour Package Size: 85g/2.9oz Package Weight: 10 x 7.2 x 4.5cm/4 x 2.8 x 1.7in Packing List: 1 x Recording Deivce 1 x Earphone 1 x USB Cable