Main Features: ● Automatically searches the channel with the strongest signal among 72 channels ● With cooling fan to lower the temperature for better FPV racing experience ● Supports AV input / output, HDMI input, and external DVR module, firmware update etc. ● Adjustable focal length makes the headset suitable for those with -4.00 diopters or below Specifications: Frequency: 5333 - 5945MHz Number of channels: 72 Resolution: 720 x 540 DFOV: 28 degree Sensitivity: -93dB or less Video format: NTSC / PAL Antenna gain: 3dBi Output impedance: 50 ohm Aspect ratio: 4:3 / 16:9 IPD: 58 to 68mm adjustable Focal length adjustment: supports -4.00 diopters or below Operating temperature: -10 to 40 Deg.C Cooling fan: yes Channel auto search: yes DVR module: support AV input / output: support HDMI input: support Input voltage: 6.8 - 7.4V Built-in battery: 7.4V 1000mAh LiPo Charge time: 1 - 1.5 hours Operation time: 2 hours

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