Features: 5.8G 40 channel 300mW images transmission: This product adopts the 5.8G frequency bands, with 40 selectable channels and an output power of 300mW, providing stable and clear images transmission, allowing users to enjoy a high-quality FPV experience. OpenVTX Open Source Images Transmission: As an open source project, OpenVTX provides flexibility and customizability, allowing users to adjust and optimize according to their own needs to meet different scenarios and flight requirements. FOR Whoop Indoor Traversing Machine: This images transmission device is designed specifically for Whoop Indoor Traversing Machine. It is lightweight, portable, and perfectly pair for Whoop body, providing users with a better indoor flying experience. Stable signal transmission: using the 5.8G frequency bands and a 300mw output power to ensure stable signal transmission and minimize signal interference. Quality images display: With high-quality images transmission function, users can clearly see real-time images of the aircraft, providing a better visual experience. Specifications: Material: Printed Circuit Board Type: OVX300, OVX303(optional) OVX300 specifications Model: OVX300 Frequency: 5.8G 40CH Transmission power: 0/RCE/25mw/100mw/300mw Power supply: DC5V Current (5v):<650ma (300mw) Weight: 0.9g without antenna Standard size: 14x15x3mm OVX303 specifications Model: OVX303 Frequency: 5.8G 40CH Transmission power: 0/RCE/25mw/100mw/300mw Power supply: DC5V Current (5v):<650ma (300mw) Weight: 1.5g without antenna Installation hole center distance: 16mmx16mm 20mmx20mm 25.5mmx25.5mm Package Includes: 1x Happy Model 5.8G 40ch Open Source Images Transmission Module Kit OVX300/OVX303 Optional 1x Antenna note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.