Front Light (With Fog Light) & Horn & Speedometer Multifunctional Bicycle Mountain Bike Headlight1. Sound mode: five2. Sound decibel rate: 130 decibels3. Lamp beads: XPG+COB+2835 x 2pcs4. Main lightfog light: 300 lumens30 lumens5. Battery: 1200 mAh polymer lithium battery (with protective plate)6. Charging time: about 2.5 hours7. Dimensions: 101.5 x 49.5 x 24.5 mm8. Material: ABS+GPPS9. The brightness of the battery indicator: 100%-75%-50%-25%10. A full-scale bicycle light with front lightfog lightwarning light, 130 decibels with five sound effects, and a new alarm function11. The large screen display can be connected to a wired code table to observe the speed, time, speed, whole journey, one way, etc.