All in one, state-of-the-art, hi-tech electronic bike meter. Quick installation of AROFLY on tire valve in 30 seconds, turns your Smart Phone as a Smart Bike Meter. Connect AROFLY with App on your Smart Phone. Provides overall biking data of Speed, Cadence, Power, Distance, Ascent etc. No other requirement of Speed/ Cadence sensors or Power measuring Devices. AROFLY is compatible with 90% of Bikes in current market, which is the most price competitive, fastest & simplest installation, most compatibility and most advanced Bike Meter in the market. It's a small and compact device with quick and easy install, which includes, a Smart Power Meter, Physical Monitoring and personal e-biking coach.