TWOOC Upgraded USB Charging Electronic Bike Bell Waterproof 50-100dB Adjustable 4 Modes Low Noise Bike Alarm Bicycle Acc

Specification BrandTWOOCMaterialABSSound100dBCharge Input5V 250mASize65 x 50mmWeight48gFeatures 1 The upgraded version of the imitation physical sound is not sharp and clear enough The progressive high pitch is not harsh for wider directional emission range 2 It features ungraded structure more prominent sound and more prominent logistics communication structure making the sound of the speaker more stable and wider 3 User friendly switch volume adjustment and multi function button set on the back can realize volume adjustment and switch function the volume is 50 100dB 4 Independent ringing button four voices can be switched to metal bell whistle horn tram bell vibrating bell 4 modes 5 Fully sealed design without fear of storm All three protection design meets the daily harsh environment 6 The size of the watch can be hidden inside the handlebar without affecting the handlebar brake shifting or other bracket operations 7 Compatible with all kinds of handlebars it can be fixed on the handlebar in 2 seconds the rubber ring is adjusted in two steps and the rubber ring is adjusted It is suitable for all kinds of bicycle installation 8 USB charging High quality polymer battery built in 280mAh lithium battery equipped with standard Android USB charging long standby for 180 days can charge 4 000 times in a single charge Package included 1 x Speaker body control switch1 x Rubber cable tie1 x Charging Cable1 x Instruction manual1 x Packing box