VECOO 10 in 1 Multifunction Waterproof Bluetooth Bicycle Audio Speaker Phone Mount Mobile Rack Holder 4400mAh Power Bank Bike Light Bike Speaker with Hands Free Calling A GOOD VARIETY OF TOOLS PACKED INTO ONE UNIT. 10 in 1 : Phone Mount Holder(At least 3.7"), 4400mAh Phone Charger, Stereo Subwoofer Bluetooth Speakers, USB/Flash Drive, 2 LED Bike Lights, Phone Answering Microphone, Micro USB Slot, SD Card Slot, AUX Input, Bike Bell Phone Holder for for 3.5-6 inchs iPhone 5 5S 6 6S 7 Plus Samsung Galaxy S3 S4 S5 S6 S7 Huawei Xiaomi... OU DON'T NEED WORRY ABOUT YOUR RIDING. Easy to install and convenient to use, can make you much fun during riding. COME WITH POWER BANK. Double LED Lights with front and flashing light for choosing. 4400MAH power bank can charge your phone or other device in emergency. NICE APPEARANCE. This multi-function Bluetooth Speaker has stylish and exquisite appearance, which is convenient to carry, it you can enjoy music anytime and anywhere. GOODQUALITY. Excellent for Outdoor Sport and exercise and Travel; 32bit ARM master platform design and USB software upgrade