1. CNC Aluminum Alloy Material, Black, With Magnet Adsorption, Ultra-Thin Design, High Concealment 2. One-Button Recording, No Button Design, Multi-Function Operation With Wire Control, With Delete Function, Playback Led Light Indication 3. ADPCM Recording 192Kbit, Optional Voice-Activated Recording 50db, Automatic Split Recording 4. Continuous Recording For 60 Hours, Standby For 60 , Capacity (Recording For 90 Hours) 5. Support MP3, WMA, WAV Playback, Support Fast Forward And Reverse Playback, With Time Stamp, The Recording File Name Is Named After The Time. 1. Recording Mode: Start Recording, Turn Off Save 2. Maximum Number Of Recording Files: 999 3. Transmission Interface: USB 2.0 4. Recording Distance: The Sound Can Be Recorded If The Sound Is 50 Decibels 5. Recording Format: WAV 6. Memory Card Type: Does Not Support Expansion Card 7. Recording Time: 88 Hours 8. Display: No Screen 9. Number Of Microphones: Two-Way 10. Capacity: 64GB 11. Battery: Lithium Battery 12. Audio Playback Format: WMA WAV MP3 13. Recording : One-Key Recording 14. External Headphones: External Stereo Headphones 15. Connection : USB 2.0 16. Support System: Win2000/XP/VISTA/7 Colour:Black Material:CNC + aluminum alloy Size:69x41x6mm Package Contents: 1 * Recorder 1 * Data Cable 1 * Earphone 1 * English Manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.