Original USB Professional Voice Recorder

• External microphone:  Yes
• Dimensions ( W ): 3.8 * 1.3 * 0.47in
• Audio recording format:  WAV, MP3
• 
  
• With Speakers:  Yes
• Memory: 8GB 16GB 32GB
• 
  
• Battery: 220mAh
• Recording Source:  Telephone recording, Built-in MIC
• Product size: 3.8 x 1.3 x 0.47 inche
• 
  
• Recording Bit Rate: 1536 Kbps
• 
  
• Support System:  Windows XP / 7 / Vista / 8 / IOS

Features: 
Memory: 8 GB / 16 GB / 32 GB
Recording format: MP3, WMV
Recording bit rate: 1536 Kbps
Recording storage: high-quality recording for 96 hours / normal recording for 136 hours
Recording sources: recording from the phone, built-in microphone 
Battery: 220 mAh (can record for about 15 hours)
Compatible systems: Windows 2000 / XP / 7 / Vista / 8 / iOS Product
dimensions: 3.8 x 1.3 x 0.47 inches.