1. Sound mode: five 2. Sound decibel rate: 130 decibels 3. Lamp beads: XPG+COB+2835 x 2pcs 4. Main light/fog light: 300 lumens/30 lumens 5. Battery: 1200 mAh polymer lithium battery (with protective plate) 6. Charging time: about 2.5 hours 7. Dimensions: 101.5 x 49.5 x 24.5 mm 8. Material: ABS+GPPS 9. The brightness of the battery indicator: 100%-75%-50%-25% 10. A full-scale bicycle light with front light/fog light/warning light, 130 decibels with five sound effects, and a new alarm function 11. The large screen display can be connected to a wired code table to observe the speed, time, speed, whole journey, one way, etc.
