The bank power bicycle has 4 in 1 multifuction: bluetooth speaker,torch, FM radio and charger functions,supports TF card( TF card Not Included). 4 in 1 multifunction bluetooth speaker can be quikly installed in car's sun visor or bicycle handlebars. It is Lightweight, Portable & Multi-Functional Accessory. Though this may just look like a flashlight. Use it once, and you’ll never go anywhere without it again. It is a great promotional products for tradeshow and giveaway.