This is FPV goggles with high quality. It's built with a 5.8G 40CH FPV receiver with high brightness backlight LED, and dual antennas for better signal. With a 480 * 320 resolution, you can easily record remarkable FPV flight.   Features: Attractive appearance, small size and light weight, easy to carry it.  Low power consumption, working current 300~330mAh.  Double antenna make the signal more stable. RaceBand 40 channel, Auto-Searching.  3 inch screen with 480 * 320 resolution, providing sharp image and virtual experience.  Built-in 3.7V 1200mAh high-capacity polymer battery, 40CH auto-searching and real-time video return 5.8G FPV receiver.  English and Chinese languages optional, meet the need of everyone.  Support AV signal output (connect external DVR).  Universal USB charging interface.  Support one key search frequency point, it will be more faster.   Specifications: Product name: Mini FPV Goggles;  Transmission: 5.8G 40CH;  Screen size: 3 inch;  Resolution: 480 * 320;  Display ratio: 16 : 9;  View angle: 6 o'clock;  Brightness: 350cd/m² with high brightness backlight LED;  Video delay: Video time-delay less than 20ms;  Lens: 4X fresnel lens, 92% transparent rate no distort of light;  Interface: Antenna: 2 * RP-SMA male;  USB: To charge the battery;  AV jack: External video signals input or internals AV signal output;  Language: English and Chinese;  Power supply: Power adapter: DC 5V/1A (USB interface);  Battery: 3.7V/1200mAh, each full charge receive around 2.5 hours working time;  Power consumption: The deceive operating current of 300~330mAh at 3.7V~4.2V;  Build-in battery maximum charge current of 500mAh;  Frequency: 5658-5945 MHz;  Receive sensitivity: 95dbm;  Dimension: About 13.5 * 12.5 * 6cm / 5.31 * 4.92 * 2.36in;  Weight: 183g (without antenna);   There might be deviation due to manual measurement.   Package information: Package size: About 18 * 16.5 * 9cm / 7.08 * 6.49 * 3.54in;  Package weight: 419g;  Gift box package;   Package list: 1 * FPV Goggles (battery built-in);  2 * Antenna;  1 * Manual;  1 * USB Charger;  1 * Audio Cable