Specifications: XERUN AXE R2 FOC ESC: Cont./Peak Current: 80A/480A Input Voltage: 2-3S LiPo, 6-9S NiMh BEC Output: 6V/7.4V Switchable, Continuous Current of 6A (Switch-mode) Input wires: Red-Black-12AWG-200mm Input connector: XT60 Programming Port: Built-in Bluetooth Firmware: iOS or Android smartphone (installed with the HW LINK app) Size / Weight: 47.4(L)x36.2(W)x26.5(H)mm/ 108g (Included input wires) XERUN AXE 540L Motor: Type: 1/10-1/8th FOC brushless motor (Patented) Waterproof: Yes Motor Diameter: 36.0mm (1.42in) Length: 57.8mm (2.28in) Shaft Diameter: 3.175mm (0.125in) Pole: 4 Kv: 2100Kv Input Voltage: 2-3S No Load Current: 2.7A Weight: 212g