1. Zinc Alloy Material, Sandblasted Black, 5d Glass, High Concealment, Beautiful Style, With Lanyard Holes 2. One-Click Recording, With By-Wire Delete Function, Play Led Light Indication 3. Pcm Recording 1536kbit, Optional Voice-Activated Recording 50db, Automatic Split Recording, Loop Coverage Recording 4. 25 Hours Of Continuous Recording, Standby For 30 , 8gb Capacity (70 Hours Of Storage Recording) 5. Support Mp3, Wma, Wav Playback, Support Fast Forward And Rewind Playback, With Timestamp, Recording File Name By Time. 1. Recording Mode: Boot Recording, Shutdown Save 2. Transmission Interface: Usb 2.0 3.Material: Zinc Alloy 4. Size: 4.2x3.7x0.96cm 5. Display: Without Screen 6. Recording Distance: 5Meters 7. Recording Time: 1500() 8. Memory Card Type: Expansion Cards Are Not Supported 9. Battery: 110mAh Lithium Battery 10. Capacity: 64GB 11.Video Recording: Not Supported Colour:As Shown Material:Zinc alloy Package Contents: 1 x Recording Pen 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.