4Trim tabsOn/off电源指示灯RotateLeft RotateRightDescendClimbLeft RightAfterForward2.Install the Transmitter Battery1)Remove the battery cover. (picture1)2)Install 4pcs AAA batteries and check the polarity of each battery. Transmitter won’t power on if batterywrongly installed. (picture2)3)Slide the battery cover back into place (picture3)3.Transmitter Instruction:1)Transmitter Functions (take MODE2 as example)picture1 picture2 picture3This USB charger can recognize different charger power supply sources. When using computer as thepower supply source, the charging current is about 500mA and the rough charging time will be 70minutes. When using adaptor with USB interface as the power supply source, the charging current isabout 1000mA and the rough charging time will be 45 minutes.NE-MASF 15 2.4GHZ 4CH Quadcopter