This is a bicycle remote control tail light & turn signal with a micro USB charging specification. How about protecting yourself from accidents? It's so bright it'll make your eyes hurt! ※ The mudguard mounting attachment in photo 7 is sold separately, but can be included for an additional 500 yen. (Please comment before purchasing) #BicycleTurnSignalDifferentTypes 【Lighting Specifications】 Normally, the center red LED flashes on and off every 4 seconds (like a nighttime aviation obstruction light). Press the left and right buttons on the remote control for the left and right turn signals (with beeping sounds: beep, beep, beep, beep). Press again to cancel. Press the ○ button on the remote control once for the center red LED to light up, twice for fast flashing, and three times for all LEDs to flash rapidly. 【Installation Method】 Remote Control: Attach the base to the handlebars and install the remote control! You can remove the remote control to prevent theft. Tail Light: Can be attached to something that extends vertically, as it relates to the direction of the light (best under the saddle!). You can remove it by taking off the belt. Includes English and Chinese instruction manuals. Main Light Size: Width 94.0mm, Height 32.6mm, Depth 26.9mm We plan to ship via Nekopos, so the original box will be folded and placed inside. Please understand. ※ The duration of light emission has not been tested, so it is unknown. ※ Regarding use on rainy days, the waterproof performance is unknown, so please use it at your own discretion. ※ Due to being a Chinese product, there may be minor scratches on the box or the main unit. ※ The remote control uses a replaceable button battery, which may be depleted, so please be aware of this. ※ I am a smoker. I take every precaution, but there is a possibility that the smell may cling to the packaging materials. Please understand. Thank you for your consideration. m(_ _)m Power Source: USB Charging