<p>By popular demand, we now have a range of RadioMaster receivers that are upgraded to V2 version. The R81 V2 receiver is Frsky D8 / D16 and Futaba SFHSS Compatible and offers a range suitable to many RC modelers.&nbsp;</p><p><br></p><p><br></p><h4><b>Specification</b></h4><p><br></p><ul><li><p>Type: R81 - D8 Nano Sbus Receiver</p></li></ul><ul><li><p>Channels: 8</p></li></ul><ul><li><p>Frequency range: 2400-2483.5Mhz</p></li></ul><ul><li><p>Power input range: 4.5-6V</p></li></ul><ul><li><p>Signal format: D8, D16 &amp; SFHSS Compatible</p></li></ul><ul><li><p>Output format: SBUS</p></li></ul><ul><li><p>RSSI: RSSI on Ch9 of Sbus Output</p></li></ul><ul><li><p>Range: more than 1km</p></li></ul><ul><li><p>Antenna length: Approximately 6cm</p></li></ul><ul><li><p>Size: 17x11mm</p></li></ul><ul><li><p>Weight: 2 grams</p></li></ul>