The YiZhan/JJRC Tarantula X6 quadcopter RX/TX uses the WLtoys v2x2 protocol which is known to have good range. This was the case with the original YiZhan Tarantula X6 (no longer commercially available) where the range was excellent (up to 300 meters in many cases). Unfortunately, the later/current builds do not have the great range of the original, in most cases is no more than 150 meters. To make things even worse, there are reported signal drop-outs and laggy behaviour when the quadcopter is over 60-70 meters from the transmitter.
