Rechargeable Light Bike Headlight Stopwatch Horn Lamp 5 Modes Cycling Warming Lamp MTB Accessories   Brand: Neutral Color: black, black blue, black red Material: Plastic + Silicone Use battery type: 2000mAh lithium battery Charging port: Android Charging time: 4-5 hours Life time: about 6 hours in high light, 20 hours in low light Features: backlight, three functions in one machine, waterproof, four-speed dimming Waterproof rating: IP6 Product accessories: 1*speaker front light+1*USB data cable+1*fixed base+1*horn switch+1*code meter sensor+1*code meter data receiver+1*fixed strap Product size: 10.8*5.2*3CM Product weight: 125g   Specifications: 1. One machine with three functions: integrated combination of stopwatch, headlight, and speaker brings a light-packed experience of 1+1+1 far greater than 3. 2. Super battery life: 2000mAh lithium battery, large battery capacity, about 6 hours of high-brightness and 20 hours of low-brightness. 3. Waterproof design, no fear of rain: life-level waterproof, can be used in rainy , there is a speaker sound port on the back, and it is not allowed to be immersed in water. 4. Automatic backlight, standby wake-up: automatic screen backlight (PM18:00-AM6:00), built-in sensitive sensor, automatic movement. wake. 5. Powerful wireless code table: wireless transmission, complete functions, rich and accurate data, and complete records. Package Included: 1*Speaker front light 1*USB data cable 1*Fixed base 1*horn switch 1*Code meter sensor 1*Code table data receiver 1*Fixed strap