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 50000rpm speed range. The coreless micro motors combined with propellers are ideal for remote control drones. https://elecena.pl/product/19293805/dfrobot-4pcs-coreless-micro-motor-8x16mm 2021-08-27 https://elecena.pl/product/19293805/dfrobot-4pcs-coreless-micro-motor-8x16mm 2022-03-29