Fortinge RF-100 & R-100 Hand Controller Kit3 Buttons (next, previous, function) and a pot wireless hand control device up to 30 meters wireless transmission. Wireless Receiver unit for RF-1 wireless hand controller, USB connection to PCMain Features:Frequency: 433 MHz 15mW RFOperating Voltage (RF100): 1.8V-3.3V DCOperating Voltage (R100): 5V DCSignal Length: 50m (RF100-R100)Number of Channels: 10 channelsConnection Type: Multiple connection RF100 to R100Power Requirement (RF100): 2 x AAA batteryPower Requirement (R100): USB connectorBattery Lifetime (RF100): 50 daysLight Indicator (RF100):- Red Color (Indicator) Connection is not available- Green Color (Indicator) Connection is availableRF100 Slide Button: Control for speed up downRF100 Buttons: 3 buttonsPrevious Button (RF100): First press Stop, Second press PreviousNext Button (RF100): First Press Stop, Second press NextF1 Button (RF100): Play, Stop