Want to get power data but don't want to sacrifice running your beloved Speedplay pedals? We got you covered. Combing industry leading technology to measure accurate numbers, with Speedplay's legendary adjustability and aerodynamics, these pedals offer the best of the best when it comes to power based pedals. Wahoo uses rechargeable batteries that last up to 75 hours on a single charge. That means no small batteries that die mid ride, or stripping battery ports with frequent changing.