Introducing LIVALLs new cycling helmet for urban commuters: the BH51T, part of the award winning BH51 range. This Bluetooth helmet connects to cyclists; smartphones to control the integrated LED cycle helmet lights and SOS Emergency alerts. The first smart and safe cycling helmet provider in the world, is continuously endeavoring in developing smarter, safer products and accessories for bicycle riders all over the world. The LIVALL BH51T is a smart Cycling Helmet with Tail Light Turn Signals and SOS Alert system with GPS location. Adjustable dial fitting. Head size from 57 to 61cm. Foam padding. Quick-release buckle fastening. Grey and blue.