1、Red and Blue Warning Lights: When the danger is approaching, sound the horn and red and blue lights to warn and it supports wifi which can be connected with mobile phones. 2、Cyclic Video Recording: When the memory card is full, the newly recorded video can automatically overwrite the original video to save memory space and improve utilization. Maximum 256G small memory cards are supported, not included. 3、Fixable with Bracket: 1/4in hole at the bottom, which can be used with a tripod. It is more convenient and easy to place in meetings, classes and recording videos; it can also be supported and fixed when connecting a computer as a camera. 4、Back Clip Design: This camera adopts back clip design that makes it easy to carry, easy to clip and fix, and making video recording more convenient. 5、Wide Use: The video camera is suitable for a variety of scene modes such as business negotiation, outdoor sports, learning records, conference training, etc. 1 x Recorder 1 x Back Clamp1 x Anti Loss Rope 1 x USB Cable 1 x Instructions  Item Type: Back Clip Surveillance CameraMaterial: ABSGross Weight: 124g/ 4.4ozVideo Format: AVIRecording Resolution: 1920X1080Video Frame Rate: 30FPSPicture Format: JPGResolution: 4032x3024 Image Scale: 16:9Support System: For Win7, for WinMe, for WinXP, for Win2000, for Vista, for OS X 10.5Charging Voltage: DC 5VInterface Type: Type c USBBattery Type: High capacity lithium polymer, capacity 1100mAh, shipped with built in batteryStorage Support: Small memory card 256G, without small memory card