iPhone X Battery Case, SQDeal [5200mAh] Rechargeable Portable Charger Protective Charging Case for Apple iPhone X/10 (5.8") Lightning Cable Input Mode with Sync Through Technology (Black Pink) USB RECHARGEABLE & WATERPROOF REAR LIGHT - With USB cable, IPX6 waterproof level,it can ensure your safety when riding in rain,please don't use for diving. 4 MODES OPTIONAL - slow flashing,fast flashing, emergency flashing and so on, you can adjust according to different situations, which provide you a safe and satisfying riding experience. SMALL & EASY INSTALLATION:Small and Portable with new style 9 crystal design. Tool-less installation,mount this bike light anywhere you want in seconds, such as the handlebar, the seat post or anywhere on the frame. ROTATABLE :180 Degree Rotation, and fit for all almost bikes with 25-32 diameter of seat post,the mount can be adjusted in the range of 25mm to 32mm. LONG BATTERY LIFE:Using PC + ABS environmentally materials, with low power LED lights to achieve long life(Note:Using the environmentally "AAA" 7 batteries 2,please use high-quality batteries while replacing the electromagnetic type, old and new batteries shouldn't be mixed for using, if product do not use for a long time, be sure to remove the electromagnetic.)