SPM1210 Spektrum SR3500 DSM 3-Channel Micro Racing Receiver, Surface. Weighing in at all of 6.5 grams and measuring only 1.06 x .78 x .48 inches, the new SR3500 micro receiver clearly qualifies as the world's smallest, easiest-to-install 3-channel racing receiver.
 Think of it. All the no-pins, no-crystals, no-glitches, no-interference convenience and security of Spektrum's DSM 2.4GHz technology in a smaller package. Fact is, except for not featuring a telemetry section, its performance and circuitry are identical to that of our regular, race-proven SR3000 receiver. Plus the lowest latency, equal to that of the new Pro Series receivers.

 - Only one third the size of the SR3000 receiver
 - Pro programming lowers latency by 1.3ms (2.6ms when used with Pro Module)
 - Lower operating voltage
 - Integrated voltage protector
 - Forward and backward compatible with all surface systems (except HRS)
 - Fuel and motor-spray resistant plastic