Review on WSDCAM Smart Bike Tail Light With Turn Signals And Brake Light, Bike Alarm Horn With Remote, Auto ON/Off Rechargeable Waterproof Bike Horn Alarm Rear Bike Brake Light Turn Signals Bicycle Tail Light by Adam Gray

Easy to install. Turn signals are great for people behind you and audible signal good for you to know it is on (different sound for left and right). Two settings for intelligent lighting (auto on/off if dark environment), 3 always on settings if you want to set it to be on all the time including "caution flashers" where both turn lights flash. Need to be off the bike to see which option you have turned on as no audible to tell you which one is active. Also like the bike alarm feature where you can remove the handlebar remote by twisting it off and set it to alert on any bicycle vibration (sensitivity adjustable from 1-7). Horn has 3 settings but seemed like only one wasn't super annoying and no way to set volume level so it is pretty loud. I tend to use the turn signal for noise if approaching pedestrians from behind as it is loud enough without the shrill horn scaring them almost literally out of their walking shoes. Horn is seriously loud.UPDATE: If the battery to the remote dies while the light is in ARMED security mode then it is stuck in ARMED mode because every time you change the remote battery you have to repair the remote which isn't possible while it is ARMED. Took apart unit while alarm was going off and the connection to the circuit board was so brittle it broke when disconnecting the battery to reset it. That is assuming that it would have actually reset it. The company did not respond to support requests via email within 24 hours so I was without this unit on a long ride. DO NOT ARM THE UNIT WITH ANY CHANCE OF REMOTE GOING DEAD.