1、Wireless remote controller installed on the handlebar to control the right/left turn signals and main light. 2、Multiple switchable lighting modes by pressing the buttons on the remote controller.Provides great safety during nighttime Cycle. 3、500mAh main light and two 300mAh turn signal lights can recharge from any device with a USB port.The remote controller power by CR2032 button cell(included). 4、IPX6 water resistance,the light can be used in rainy days,snow or thick fog.(NOTE:Please do not soak into water for long time). 5、Split design for mian light and turn signal lights,meets your different demands. 6、No tools required.The lights can be easily mounted on on the front/rear of most bicycles.Just hook the light on the front fork and seat pipe with rubber rings. Multifunctional bike light with turn signals make you visible from blocks away, and remind drivers to keep safety distance when driving passes you. It is your best partner for nighttime Cycle. Features: Wireless remote controller installed on the handlebar to control the right/left turn signals and main light. Multiple switchable lighting modes by pressing the buttons on the remote controller.Provides great safety during nighttime Cycle. 500mAh main light and two 300mAh turn signal lights can recharge from any device with a USB port.The remote controller power by CR2032 button cell(included). IPX6 water resistance,the light can be used in rainy days,snow or thick fog.(NOTE:Please do not soak into water for long time). Split design for mian light and turn signal lights,meets your different demands. No tools required.The lights can be easily mounted on on the front/rear of most bicycles.Just hook the light on the front fork and seat pipe with rubber rings. Specification: Model: Set 1 / Set 2 (optional) Material: ABS Battery: 500mAh(for main light) ; 300mAh(for each turning light) ; CR2032 button cell(for remoto controller) Working time: approx. 16-18hrs(for main light) ; 5-7hrs(for each turning light) Chagring time: approx. 1 - 2 hrs (main light/turning light) Waterproof: IPX6 Main light size: 55 * 50 mm / 2.2 * 2.0 in Turning light size: 57 * 50 mm / 2.2 * 2.0 in Package weight: approx. 231 - 305 g / 8.1 - 10.8 oz Package list: 1* Main Light 4* Turning Signal Light 1* Remote Controller 1* Charging Cable (for main light) 1* Charging Cable (for turning signal lights) 4* Large Rubber Ring 4* Small Rubber Ring 5* Fastener Buckle 1* Main Light 4* Turning Signal Light 1* Remote Controller 1* Charging Cable (for main light) 1* Charging Cable (for turning signal lights) 4* Large Rubber Ring 4* Small Rubber Ring 5* Fastener Buckle