About this product FLYWOO 1S digital image transmission power module The ultra-micro power supply solution designed specifically for DJI O4 system, with an extreme volume of 11.5×8.2×2.2mm and an ultra-light weight of 0.3g, provides 5V/3A continuous and stable output for 1S micro drone. configuration Input Voltage: 2.65V-5V (1S battery voltage) Output: 5V/3A Dimensions: 11mm x 8mm x 2.2mm Weight: 0.4g FAQ: Q1: Will it overheat under full 3A load? A:Tested temperatures under 3A output remain ≤45°C (113°F) at 25°C (77°F) room temperature. Built-in over-temperature frequency reduction protection eliminates burn risks. Q2: What models are compatible? A: Supports all 1S-powered 1.6"-2" FPV drones. The ultra-compact design minimizes space intrusion. In the box 1x FLYWOO O4 1S 5V BEC Module 1x shrink film 4x Silica wire (Red/Black)