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Pioneer is selling off the power meter division to Shimano. Shimano stated that they are going to continue support and warranties.
Official announcement: https://www.pioneerelectronics.com/PUSA/Cycle+Sports/​ [pioneerelectronics.com]

These are dual ant+ and Bluetooth. There are some claims about accuracy challenges with these specific Ultegra and Dura Ace cranks, not sure if they are going to be resolved or how bad they are

Complete Ultegra R800 Cranckset $ 500: https://www.backcountry.com/pione…r-crankset