ENHANCED VISIBILITY WITH MULTIPLE MODES: Featuring a super bright output, this bike tail light ensures you are seen both day and night. It offers five distinct modes: right/left turn signals, steady, emergency, and full brightness, all controlled effortlessly via a handy remote. AUDIBLE BIKE TURN SIGNALS WITH ALARM: Signal your turns with using the remote's R/L buttons. CONVENIENT WIRELESS REMOTE CONTROL: Mount the smart tail light on your bike's handlebar and switch between lighting modes with the four-button remote. This setup promotes safety by allowing you to keep your hands on the handlebars while making adjustments. , WATERPROOF, AND LONG-LASTING: Certified with IPX6 water resistance, this bike rear light is built to withstand rainy conditions. It includes a 500mAh rechargeable battery that charges quickly via USB, ensuring you're never without power when you need it most. SIMPLE INSTALLATION WITH ADJUSTABLE VISIBILITY: This wireless turn signal light fits most bikes and installs easily. Size: about 11.5cm x 3cm Mode: red light/red light flashing/all flashing/left turn signal/right turn signal Battery: built-in polymer lithium battery Color: As Shown Material: ABS+AC Package Contents: 1 x Tail light 1 x wireless remote control 2 x fixing straps 1 x base straps 1 x USB data cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.