"6 channel, single whip antenna, used with SM-TG661, radio control receive range: 400M.Working Voltage!G+4.8--6V , receive sensibility!G-100dBm ,receive mid frequency band!G500KHz, current: 20mA.Automatically scan the frequency in existence,and reject to attend when there is more than 40 band.
"

"Technical parameter!G
Receive frequency: 2.4GHz -- 2.483GHz
Modulation: FSK
Control System: Pulse width control PPM
Power Supply: 4.8V -- 6V
Current!Ggreater than 200mA
Ambient temperature: -20 degree C~ 70 degree C"