1800mm high sensitivity double antennae, stable reception. High quality 2.54mm pin, low resistance, good conductivity. Support voltages feedback and automatic switching detection. Small in size, easy to install. Adapt to models of fixed wing unmanned aerial vehicle vehicle models. Size:. 48x27x15mm/1.88x1.06x0.59inch Power Supply:DC4.5-8.4V Antennae type: 0cm high sensitivity double antenne Wireless Pre installed ExpressLRS 3.3.0 Output channel: PWM Return power: 100mw Return battery voltages detection: DC4.0-35V Bus interfaces: CRSF Colour:Red Material:ABS Package Contents: 1 * HR8E 2.4GHZ ELRS PWM Receiver(The difference in words does not affect the use) 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.