This is the Optima 9 9ch 2.4GHz Receiver from Hitec. FEATURES: Dual LED status indicator with low battery warning SPC (Supplemental Power Connection) Telemetry functions (with Hitec Spectra 2.4 module) include Temperature (4) RPM (2) Fuel Gauge, GPS (speed, altitude, coordinates) Fail safe and hold mode Compatible with Transmitters using Hitec AFHSS (Adaptive Frequency Hopping Spread Spectrum) 2.4 GHz system Dual BODA (Boosted Omni-Directional Antenna) Smart Scan mode selectable selects between normal and scan [1]mode 2[IMAGE].4 signal types Two year limited warranty through manufacturer beginning at date of purchase INCLUDES: One Optima 9 2.4GHZ receiver with two BODA antenna holders and instruction sheet REQUIRES: Hitec AFHSS 2.4GHz transmitter SPECS: Dimensions: 1.89 x 1.12 x 0.44" (48 x 28.4 x 10.6mm) Weight: 0.77oz (22g) Operating Voltage: 4.8-7.4V from receiver battery power or ESC 4.8-35V using SPC function Max Current Consumption: 190mA jxs 02/09/10 ir/jxs 1. #