"Specification:【StyleA】Product material: ABSProduct size: Front light: 6.2*6.2cm / Back light: 10*5cm 【StyleB】Product material: ABSProduct size: Front light: 4.5*4.5cm / Back light: 10*5cm Note:Due to the manual measurement, there will be an error of 1-3 cm.Feature:【StyleA】1.Reaching an illumination distance of 20 meters to ensure that you can see potential obstacles or dangers. 3 lighting modes: high beam, low beam and blinking, you can change by pressing the button.2.The revolver light has been upgraded to a 90-degree adjustable angle. The revolving angle helps the revolver adapt to changing running scenes and meet the requirements of uphill and Downhill sight line requirements. It is very suitable for illuminating roads at night/night (also suitable for mountain trails)3.Waterproof and multifunctional outdoor IPX65 waterproof design is very suitable for outdoor activities, more reliable and durable, you don't have to worry about rain. The running light can be adjusted for women, men and children. The rechargeable chest light is very suitable for people who like outdoor activities, night running, jogging, walking, hiking, jogging, camping, fishing, exploring caves, etc.4.Long service life The night running lights can be charged via USB, and the battery life is long. This means you will not need to buy batteries for the driving lights. Comes with a USB charger cable, which can be easily charged through any USB port. USB charging only takes 2 hours, and it can be used for more than 4 hours in low power consumption mode.5.Lightweight and comfortable The driving light is very light, only 160 grams, you will forget to wear it and will not hinder your movement. The best alternative to headlights or flashlights. Our LED driving lights are equipped with adjustable elastic straps, which are scalable and durable, and the clip fastener makes it very easy to put on and take off without tangling. It can be adjusted according to body type and height for optimal comfort.【StyleB】1.3 bright light modes, 3 cool white light intensity settings (low/high/strobe) in any situation. It can project up to 250 lumens of LED lights within a visual range of 0-20 meters. You can make changes by pressing the red button.2.There are 3 cool white lights on the front and 8 red lights on the back. It is equipped with eye-catching reflective fluorescent fixing straps, which can help you see (obstacles on the road) and (by other people) more easily and clearly in the dark, thus providing you with all-round protection.3. Comfortable to wear the shoulder strap is very light, with eye-catching fluorescent green, with reflective strips, it is easy to see in some car drivers and pedestrians or cyclists at night. The length of the elastic shoulder strap can be adjusted for comfortable wearing. Suitable for most people of different body types.4.USB rechargeable and waterproof 2000mAh large battery, you don't need to charge frequently, and it is easy to charge through computer and mobile power. With IPX44 waterproof design, there is no need to worry about rainy days in outdoor activities.Package Including:【StyleA】1*running light1*USB charging cable【StyleB】1*New waterproof outdoor sports climbing night running light1*USB charging cable1*English manual"