Features: 1.ABS material, durable, not deformed. 2.Multiple Use: Bike light, bike horn, cellphone bracket and powerbank. You can not only save more money, but can also save more space on your bike handlebar. 3.Sealed and waterproof, no fear of wind and rain, no matter in daily or outdoor travel, it can be easily handled. 4.Portable and secure cell phone holder, elastic clips, good stability, adjustable width 55-90mm for most cell phones.Suitable for 4-6.5 inch phone. 5. 130 decibel speakers, bid farewell to shouting, up to 130 decibels of sound effectively warning passers-by, vehicles. 6. High brightness lamp beads,night riding protection, to ensure safe driving at night.Strong light, low light, flashing three modes. 7.Shock absorbing silicone gasket does not harm the phone:The holder is equipped with a shock-absorbing pad to protect the phone case and prevent scratches. 8.USB charging, riding more convenient, comes with USB charging, can adapt to a variety of USB chargers. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Specification: Material:ABS Size:8.2 x 12.5cm Suitable for 4-6.5 inch phone. Battery Capacity: 2000mAh/4000mAh(Optional) includes: 1 x 4 in 1 Bicycle Light