WARNING: 1.Install antenna before use. 2.To prevent overheating.provide constant airfiow and a well ventilated environment.Install a cooling fan if operating in confined conditions. 3.The 5V Output is just used for a Camera/Cooling Fan Don't connect Power Input / Battery to 5V Output port. Otherwise the VTX will be damaged. Specifications: Power Levels: 25mW/200mW/800mW/1000mW/1600mWVoltag Input Rang: 7-28V (2-4S)Connector Types:MMCX, RP-SMACooling:Integrated cooling fanSize: 36mm x 36mm x 10mmWeight: About 20g Features: High Transmission Power: Offers 5 power levels ranging from 25mW to 1600mW, ensuring high-quality video transmission even at long distances. Wide Input Voltag Rang: Supports 2-4S (7-28V) power supply, allowing versatile application in various FPV setups. Smart Audio Compatibility: Equipped with IRC Tramp Smart Audio for seamless frequency adjustments and control. OSD Parameter Adjustment: Features On-Screen Display parameter adjustment, enabling easy and efficient fine-tuning of settings. Compact and Lightweight Design: Weighing approximately 20g and measuring 36mm x 36mm x 10mm, it fits easily into any FPV drone configuration. Package included: 1x 1.6W VTX Module 1x MMCX Cable OR RP-SMA Cable