Professional Sony HAD CCD Mini Bullet DVR Helmet Camera Sport Action Camcorder + 2.0" TFT LCD Screen Recorder DVR Professional Sony HAD CCD Mini Bullet DVR Helmet Camera Sport Action Camcorder + 2.0" TFT LCD Screen Recorder DVR Built-in 8G Flash Memory,Cyclic Recording Function,It can record video cyclically, automatically delete the previous data when the storage is full Motion-activiated Recording Function 20 Seconds Recording in Advance When Motion Detection Starts,Real-time and Image ID Number Stamp on Recordings,One Key Operation for Start-up Recording Support 4 hours continuous recording,Built-in 8G flash memory, Support Extra SD Card Up to 32GB,Support Media Play(Music; Movie; Photo) Language: English; Chinese,Interchangeable/Rechargeable 1800mAh Li-ion Battery