Product name:Hobbywing Upgraded 3 In1 Multifunction Professional LCD Program Box for ALZRC Devil 380 --Works as an individual device to set the ESC, the value of each parameter is displayed on the LCD screen. --Works as an USB adapter to link the ESC with a PC to update the firmware of the ESC or set the ESC by HOBBYWING USB LINK SOFTWARE . --Works as a Lipo battery voltmeter to measure the voltage of the whole battery pack or each cell. . Description: Type:LCD Program Box Size: 90mm (L) * 51mm (W) * 17mm (H) Weight: 65g Input Voltage: 4.5-12.6V (If the ESC hasn't a built-in BEC, you must use an additional battery pack to supply the program box) Displayer: 16*2 characters LCD. Interface: Mini USB interface, ESC interface (Futaba plug), Power supply interface (Futaba plug) Compared with the "2 in 1 Professional LCD Program Box": Models of LCD program boxes: 2 in 1 Professional LCD program box (Already stopped). Multifunction LCD program box: It is the new version, it uses MCU (microprocessor) with larger memory size, and it also has a new function to work as Lipo battery voltmeter to measure the voltage of the whole battery pack and each cell. Firmware for the LCD program boxes: 2 in 1 Professional LCD program box: It has 2 types of firmware a) Type A: The firmware with postfix "_V3" (eg. V1.11_120331_V3) is only suitable for XERUN-120A-SD V3 and V3.1 ESC b) Type B: Firmware without postfix "_V3" (eg. V1.08_120504) is suitable for the ESC below except the XERUN-120A-SD V3 or V3.1 ESC. Packages includes: 1 x 100% Hobbywing 3 In1 Multifunction Professional LCD Program Box 30502000014