Detailed Product Description Mini DVR camera, digital video camera, digital voice recorder JVE-3109Cmini voice recorder/ mini camcorder/ key camera: take photo and video+audio,640* ... formatJPG, 1280*960 resolutionRechargeable Batterybuilt-in Li battery, Continuously work 2 hoursDimension51mm*32mm*13mmCharging time3-4 hoursInternal Memory2GB~8GBUSB port2.0HSOperation ...