Micro Drive 600XL (Front)* Max 600 lumens / 44 hour runtime in Femto mode* New housing with stylized heat dissipation fins* Silicon rubber strap* IPX7 water resistant * Integrated USB stick for cable-free rechargingStick Drive (Rear)* Max 30 lumens * USB Rechargeable and magnetic clip-on mount* Wide angle optics with 270å¡ visibility for maximum safety* Aero and round seatpost compatible* Slim design, lightweight and durable* Magnetic clip-in mount* IPX7 water resistant