Bicycle computer with APP via bluetooth

Item NO.:**3

Name:bicycle computer

The bicycle computer can connect with APP. The APP is designed by us.All the date can upload to APP immediately. And it will record the data from week, month and year.Also have a  map that you already been. For more information, pls contect us asap.

1. Bluetooth 4.0                                                                     2. Measuring cycling speed, cadence                                
3. Timer function
4. Work with popular fitness APP                                                     5. Waterproof                                                                         6. Transmission range: < *0m                                                      
7. 1 * CR***2 Battery