At only 4.4 grams and 19.0 x 40.0 x 9.0mm (WxLxH), the AR6110E is the ultimate 2.4GHz receiver for most any small electric model from mini profile foamies to 400 class helis. Because it uses advanced DSM2 technology, it is only compatible with DSM2 aircraft radio and module systems. It also boasts a wide input range that allows it to operate with 3.5- to 9.6-volt electrical systems.