Eachine TX5258 5.8G 72CH 25/200/500/800mW Switchable FPV Transmitter Support OSD Configuring Smartaudio Precise details: Specification: Brand: Eachine Item model: TX5258 Antenna Gain: 3dBi Frequency: 5645-5945MHz Wireless channels: 72CH Video Format: NTSC/PAL Transmitting Power: 25/200/500/800mW switchable Working Current: (MAX)7V-550mA / 12V-300mA / 24V-160mA Audio Bandwidth: 6.5MHz Video Bandwidth: 18MHz Audio Carrier: 1Vp-p(1KHz) Audio input impedance: 10KΩ Operating Voltage: DC7-24V Output voltage: 5V /300mA Power supply: 5V camera@under 0.3A max. Output power: 25mW:100mA /200mW:200mA /500mW:260mA /800mW:300mA @12V Range: Up to 4km with omnidirectional RHCP antennas Antenna connector: RP-SMA Port connector: JST 6-pin Weight: 8.25g Size: 31*21*5mm Notice: LED flashes 2 times quickly while displaying power. For example: "1" flash 2 times means "25mW" Features: With microphone 7-24V input with 5V output OSD configuration using FC UART 25/200/500/800mW switchable One-button frequency and power setup Supports 0.01mW (parameter-adjusting-mode) Smartaudio enables remote control to switch power Built-in protection function; module will not be damaged if antenna is forgotten Overheating automatic protection to prevent damage from overheating Package included: 1 x Eachine TX5258 5.8G 72CH 25/200/500/800mW Switchable FPV Transmitter 1 x Power AV Cable 1 x Antenna