DFRobot 4PCS Coreless Micro Motors are designed to offer high performance, are easy to wire, and operate at the 3.7V supply voltage. This coreless motor offers a 46000rpm speed range. The coreless micro motors combined with propellers are ideal for remote control drones. https://elecena.pl/product/19293806/dfrobot-4pcs-coreless-micro-motor-8-5x20mm 2021-08-27 https://elecena.pl/product/19293806/dfrobot-4pcs-coreless-micro-motor-8-5x20mm 2022-08-10