About this item ▶Driving Recorder◀ KRACESS Upgraded camera with 4G all-glass lens, video effect greatly improved,equipped with an IP Full HD 1080p Front Camera, can be used as a driving recorder or an action camera. The helmet supports a built-in memory card of up to 64GB. When the memory is full, it will be deleted automatically , to record the good scenery along the way, and share your journey with your relatives and friends. ▶Bluetooth Smart Helmet◀ High-quality stereo sound, built-in loudspeaker and windproof microphone, can make calls/play music/voice navigation clearly.Beautiful music enhances your riding pleasure. Helmet waterproof to ipx5 levels, you can ride in the Rain ( For your security, do not running for a long time in the rain ). ▶Security Lights◀ The helmet can automatically sense acceleration / deceleration / fall, and alert the rear vehicles with highlight warning light.Installing the remote control on the vehicle handle can actively control the left and right turn signal lamp / double signal.Within 150 meters at night, other drivers are also clearly visible, making the ride safer. ▶Safety Protection◀ The Shell adoptes PC+EPS in the film forming process, super comfortable, lightweight, have greatly enhanced the helmet impact resistance, provides safer daily work on the road. Using magnetic-replaceable goggles with removable windproof ear protection,the helmet is comfortable for most head circumferences of 21.65-24.4 inches. ▶Brand and Service◀ KRACESS spent 3 years developing this adult smart cycling helmet, with a utility model patent, for the majority of cycling enthusiasts escort.If you encounter any problems during use, please contact us in time to help you solve your worries. KRACESS provides one-year after-sales warranty service, you can buy with confidence.