1. Dual communication link, the antennas work at different frequencies at the same time, with super anti-interference performance; 2. True diversity dual reception, integrating dual-channel SX1276 (2.4G version SX1281) and dual-channel PA/LNA, dual-antenna omni-directional reception, stable signal; 3. Using TCXO temperature-compensated crystal oscillator, the frequency is more accurate and it is not afraid of high temperatures or severe cold, and it will not lose signals during long flights; 4. Direct plug-in connection, plug and play, eliminating the trouble of soldering and enabling quick replacement while retaining the pad design; 5. Elrs has the characteristics of long-distance remote control, low latency, and up to 1000HZ refresh rate. 6. It can use WiFi to upgrade firmware. refresh rate:2.4G:50hz-1000hz chip:2.4G:ESP32+2xSX1281+TCXO Receiver dimensions (without antenna):2.4G:22mmx15.24mm return power:2.4G:100mw Antenna interface: ipex1 generation Input voltage: 3.6V-5.5V Indicator light: Color RGB light The printing may be different in different batches, but it will not affect the use Colour:Black Material:PCB Package Contents: 1x Receiver with antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.