... : AVI video format,352×288 Internal Memory:4GBVideo File size:>40MB per minuteAdaptor: USB adaptor charging cableBattery:Li-ionRecord ... 2 hours. Operation: Move the ring sensor around on/off pinhole for a second and the indicator will turn yellow ... , then it turns yellow saving the file and turn off.Body size: 6.9*3.2*0.8cm/24g set ... size:17*9.3*3cm/154g Accessories: ring sensor, USB ...