Description: This is a 8GB/16GB USB digital voice recorder pen with rechargeable refill. It supports MP3, WMA, and WAV music formats. Long for time voice recording.With this built-in battery Digital Voice Recorder in hand, you will for benefit its great function of recording sound files in the office, lectures or conversations etc. Features: brand new and high quality. One-touch recording & high quality recording. Recording via high grade built-in microphone. Playing back via high quality speaker. Recording telephone conversations. Working as drive free USB flash disk. Built-in rechargeable lithium battery. Low battery indicating function. MP3 function. Specifications: Item Type: Digital Voice Recorder Material: ABS Color: Black (As Pictures Show) Size: 62.5cm/2.360.98in(Approx.) Headphone wire length: 115cm/45.26in (Approx.) Recording Format: WAV Music Formats: MP3 / WMA / WAV Sampling Rate: 48KHz Frequency: -20khz~20khz Microphone: Non-directional condenser microphone Default Recording bit rate: 192 Kbps Memory: 8GB/16GB (Optional) Built-in Lithium Battery Capacity: Lasting for about 8h while continuously recording Charging time: about 1-2 hours Quantity: 1 Set (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X Digital Voice Recorder 1 X Headphone 1 X USB Adapter 1 X USB Charging Cable 1 X User Manual