Spektrum SR215 2 Channel DSMR Sport Receiver SPMSR215Spektrum SR215 2 Channel DSMR Sport Receiver SPMSR215 Built around frequency agile DSMR technology, the SR215 receiver delivers superb range and response, especially in noisy RF environments where a solid 2. 4GHz link is crucial. Not only is the 2. 4ghz link solid, this model also implements our lightning fast 5. 5ms frame rate, providing a quicker , low latency connection for the pro level enthusiast. The SR215 also features a new, modern case design