Wiseup&trade; 16GB Portable Hidden Camera USB Flash Drive Motion Activated DV Camcorder Spy Camera: it looks like a USB flash drive. Use as a hidden video recorder in your pocket to secretly record live conversations without anyone realizing it. Use as a listening device to gather surveillance evidence about treatment of loved ones in care. Motion Detection: to save on memory space and electricity, the spy U Disks hidden camera can be set to record only when motion is detected. Video Recorder: U-Disk USB flash drive function, it is also used to capture conversations, interviews, meeting decisions, lectures, talks, conferences concerts, sermons, ceremonies, training sessions, telephone conversations, radio programs. Record doctors' instructions. Mini Size: it is a lightweight and mini size 8*2.5*1mm . You can keep it in your pocket and carry it anywhere. Memory Card: support 32GB Micro SD Card in Max , 16GB memory card is included. We suggest you to use SDHC10 micro SD card for this camera.