Voice Sensor Recorder 1. Easy to operate 2. Built-in 4GB internal ... . A real ball pen 4. USB drive New 4GB Voice Sensor Recorder Main function:1. Digital voice recorder pen2. Easy to ... ,Windows ME, Windows 2000,XP,and Linux,Apple Os Item weight 31g Function Play back function Recording Stereo recording Application Wide ... days for 100pcs Warranty Time: 1 year New 4GB Voice Sensor Recorder