The Sanwa RX-492 2.4GHz 4-Channel FHSS5 SSL Telemetry Receiver uses a built in antenna with exceptional range and response time. With a lightweight design and a small footprint this receiver is great for 1/10 and 1/12 scale electric RC cars. This receiver is SSL compatible with either the Super Vortex or PGS Servos (Sold Separately). Package includes one receiver, one receiver cover, three plugs and one bind plug. NOTE: RPM sensor (SNW107A41061A) and temperature sensor are not compatible. RPM and temperature telemetry are only capable with the Sanwa Super Vortex series. FH5U RF mode is not capable to use telemetry. Specifications: Frequency: 2.4GHz FHSS5U/FHSS5 Channel: 4ch Input Voltage: 3.7-7.4V Dimensions: 18.5x20.2x27.4mm Weight: 6.8g Compatible radio: M17