Name: Bicycle Smart Tail LightColour: Black material: plasticBox size: 9.3*12.8*5.4 CMProduct weight: 220gTurn signal size: 111.6*30*33.8 mmWorking environment: -20~60°CWireless transmission mode: 433MWaterproof rating: IPX4Red warning light brightness: 85 lumensTurn signal weight: 168gCharging input: DC 5V 1ATurn signal battery capacity: 2200mAhRemote control battery capacity: 180mAhTurning lamp charging time: about 3-4 hours (red light in charging, green light after full)Remote charging time: about 1-2 hours (red light in charging, green light after full)note:1. Do not disassemble the turn signal on your own. There are broken and fragile posts inside. If it is damaged, it will not be guaranteed.2. When the product is not used for a long time, please charge it at least once in 3 months, otherwise the battery may not be fully charged.3. This product is waterproof to IPX4 and can be used in light rain, but do not soak the product in water.