Main Function: HiddenTie Spy Camera Material: - Tie - 100 % Polyester - DVR - High Grade ABS Flash Memory: 4GB Video Capture Resolution: VGA(640 x 480 at 30FPS) Buttons: Power ON/OFF Interface: USB Port Dimensions (mm): - Tie - L:490 x W:40 (mm) - DVR - L:130 x W:45 x D:10 (mm) Supported OS: 2000/ XP/ 2003/ VISTA / MACOS / linux. Built in DVR Built in USB port for easy data transfer Remote for easy on the go control Vibrates to indicate start/stop recording Internal Li-Ion battery Accessories: 1 x Tie Cam DVR 1 x Remote control 1 x USB cable