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 rechargingSTRIP DRIVE (REAR)* Max 150 lumens / 57 hour runtime in Flash mode * New 800 mAh battery* New mounting style to fit shorter seat posts with USB plug and cable* Wide angle optics with 270 visibility for maximum safety* Aero seat post compatible* Lightweight and durable* IPX7 water resistant co-molded design