Usb-Fix Trek, rainproof double USB charger, handlebar fixing – Ultra Fast Charge – 5400 mA – 12/24VrnAllows to charge your device even in bad weather conditions.rnCompletely water resistant thanks to ultrasonic sealing and protective membrane on the USB ports.rnSuitable for handlebars with diameter from 21 to 32 mm.rnAnti-scratch rubber adapter that can be cut to fit.rnIntelligent self-regenerating fuse.rn150 cm electrical wiring with fork terminals.rnSmart chip: for a safe and fast recharge.rnShort circuit, overheat, overload and overvoltage protection