A great solution for smartphone users going on long distance rides. This high quality silicone holder tightly grips any smartphone (4.5” – 5.5” screen) with or without a case. The high power 7800mAh dual USB port power pack mounted below can charge two devices simultaneously. On a ride, you can charge your smartphone, sport camera or front light. When you’re off your bike, it becomes a portable power bank to charge your smartphone or tablet, either separately or together.