Features: It has a built-in microphone. Flash memory: no It looks good, excellent video recorder TF card per slot, to accommodate the 16GB SD card (not included). Easy-to-use, easy to carry, fast correspondence. Specification: File Format: AVI Video encoding: M-JPEG Video resolution: 720 * 480 VGA Video frame rate: 30 FPS Picture format: JPG 1280 * 960 Compatible OS: Windows me / 2000xp 2003 / vista Running time: 90 minutes Voltage: DC-5V Interface: MINI 5pin USB Memory support: TF card Battery: Lithium-ion battery Battery charge time: about 3 hours Operating temperature: 0 ~ 40 ¡æ Bundled content: 1 x button video camera 1 x USB cable 1 x manual