Features:
Perfect combination of wireless speedometer and front light.
The latest 2.4GHz digital wireless speed sensor.
Easy installation and firm fixation.
Micro USB can connect power bank￡? extend working hours. (power bank NOT included).

Specifications:
Light source: 2 * White LED
LED light work mode: High - Low - Off
Lumen: 300lm
Bike light running time: 3 / 6 Hours
Battery: 2600mAh lithium battery
Recharge time: About 4 Hours
Current speed: 0.00~99.99 km/h
Average speed: 0.00~99.99 km/h
Maximum speed: 0.00~99.99 km/h
Trip distance: 0.00~99999 km
Total distance: 0.00~99999 km
Clock: 00:00:00~23:59:59 (24H system)
Trip riding time: 00:00?ˉ~9999:59?ˉ
Total riding time: 0~999999 Hours
Calories: 0~999999 kcal
Tire size: 100mm~3999mm (default 2095mm)
Sensor battery: 1 * CR2032
Sensor size: 36 * 34 * 13mm
Product material: PC
Product size: 106 * 57 * 35mm
Product weight: 128g / 4.5oz

Package List:
1 * Speedometer
1 * Bracket
1 * Speed Sensor
1 * Magnet
2 * Bracket Rubber Ring
4 * Sensor Rubber Ring
1 * USB Cable
1 * Quick Release Mount
1 * User Manual (English)