Features:Simple and stylish design, can be quickly worn on fingers on emergency situationsSelf defense tool and perfect for outdoor activitiesLight weight, easy to carryFour colors for you choiceOut..

Features:Simple and stylish design, can be quickly worn on fingers on emergency situationsSelf defense tool and perfect for outdoor activitiesLight weight, easy to carryFour colors for you choiceOut..

Features:Simple and stylish design, can be quickly worn on fingers on emergency situationsSelf defense tool and perfect for outdoor activitiesLight weight, easy to carryFour colors for you choiceOut..

Features: - With super bright 10 LEDs ( 6 LEDs on the front, 4 on both side ) with 80000mcd luminous intensity, effectively improve riding safety- 8 lighting modes: Always on ( last 50 hours ), fla..

Features: - Multifunctional bicycle speedometer, includes all vital functions for novices and pros alike. - Real-time display of the current speed, odometer, trip distance, maximum speed, average sp..

Features: - Multifunctional wired bicycle speedometer, includes all vital functions for novices and pros alike.- Real-time display of the current speed, odometer, trip distance, maximum speed, aver..

Features: - Multifunctional bicycle speedometer, includes all vital functions for novices and pros alike.- Real-time display of the current speed, odometer, trip distance, maximum speed, average sp..

Features: - Multifunctional wireless bicycle speedometer, includes all vital functions for novices and pros alike.- Real-time display of the current speed, total odometer, trip distance, maximum sp..

Features:- Multifunctional wireless bicycle speedometer, includes all vital functions for novices and pros alike.- LCD backlight with touch mode large screen, easy to read the data even at night, id..

Features:- Multifunctional wireless bicycle speedometer, includes all vital functions for novices and pros alike.- LCD backlight with touch mode large screen, easy to read the data even at night, id..

Main Features:- Bike combo sensor (included the cadence sensor and a speed sensor) attaches to the chain stay on your bike to help you track your speed and cadence accurately- Suitable for iOS 6 sys..

Features: - Adopt super-accuracy sensor, a great multifunctional and practical outdoor tool for you- Functions: thermometer, hygrometer, time, date, alarm clock, incorporates altimeter, barometer, ..