Your price: $36.004 Channel Ultralight 2.4GHz Receiver Features of the IS-4R Ultralight 4 Channel Receiver ¦Extremely small and light (24×15.1×5.6mm, 2.2.g) ¦Range >>450m on ground. ¦User set failsafe on all channels. ¦Fast relink time (~1sec) in the event of signal loss. ¦Resistant to brown out (continues to work down to much less than 2.8V) A 2.4GHz receiver that weights just 2.2g? Fly-Dream have launched their latest 2.4GHz 4 channel receiver. With standard servo pin spacing, PVC shrink-wrap packing makes it ultra light. It weighs less than 2.4g (the whole receiver and 7cm antenna together). It is one of lightest receivers in the world! The ultralight 4 Channel 2.4GHz receiver is "light" years ahead of the competition. I have tested range and to my surprise obtained a solid link at 740m!!!
Your price: $36.004 Channel receiver for indoor (or micro models outdoors).....weighs 1 gram. Operates from 2.2 - 9 V, draws 18mA. Has a range of 300m on the ground. Leaps small buildings in a single bound (just kidding, but it really is very good indeed). Uses micro JST connectors (a set come with the receiver). Recommended servos S2D5Micro