Main Features: 1. 2 in 1: 4GB digital voice recorder + MP3 player2. 4GB lager internal memory3. LCD digital screen 4. A-B repeat function， suitable for learning and take down， and support MP3 music playing5. Built-in high-power speaker， earphone and speaker can be switched intelligent， outstand acoustic6. Records telephone conversations， lectures， meetings， interviews7. Built-in rechargeable battery8. Professional appearance design， easy to carry Model : GH-600 Features: Voice Recorder + MP3 Player Display: LCD Screen Capacity : 4GB Recording Format : WAV Recording Source: External MIC recording， Built-in MIC Battery: 280mAh Support System: Windows 2000 / XP / 7 / Vista Optional Languages: English， Simplified Chinese， Traditional Chinese Package weight: 0.212 kg Product size (L x W x H) : 9.5 x 3.2 x 0.8 cm / 3.73 x 1.26 x 0.31 inches Package size (L x W x H) : 15.5 x 8.5 x 4.5 cm / 6.09 x 3.34 x 1.77 inches Package Contents: 1 x GH-600 4GB LCD Display Digital Voice Recorder MP3 Player， 1 x 1 x USB Cable， 1 x Earphone， 1 x Microphone， 1 x English User Manual