LifeBEAM Lazer Genesis Bike Helmet White - Large 58-61cm Nominal Mass 384g Treble is reproduced with stunning

Treble is reproduced with stunning warmth and smoothness thanks to the 20mm real silk silk dome tweeter

Safe and durable construction

Head Size 6 1/4 to 7

set off a piercing audio alarm

Protection against power surges and overheating is built into every unit

LifeBEAM Lazer Genesis Bike Helmet White - Large 58-61cm Nominal Mass 384g Treble is reproduced with stunningThe LifeBEAM Lazer Genesis Bike Helmet with Heart Rate Monitor White Large, is an advance wearable instrument for measuring human performance. The Lazer Genesis measures heart rate and performance and compatible with most fitness devices. This LefeBEAM helmet has an advanced optical sensor and requires no chest strap. Suitable for both road and mountain riding. All weather compatibility. Bluetooth 4. 0 and ANT+ connectivity. Sleek Lazer helmet design.