8885 IR Remote Control: The 8885 IR Remote Control operates on 4 different channels enabling the of 4 models being controlled at the time. Control up to 8 different for Functions with one remote by connecting 2 for Functions to 4 different receivers each. The reaching distance of the infra-red RC system is at least 10m. Requires 3 AAA (1.5V) batteries, not included. 8884 IR Receiver: 2 terminal small receiving main control (2 motor output)2 terminal small receiving main control (2 motor output). function IR RC system runs on 4 different channels, allowing you to control 4 different models at the time. The infrared receiver has 2 outputs, can up to 2 different functions. The reach of the infrared remote control system is at least 10m. Material:plastic colour:As Shown Package Contents: 1 x IR Remote Control 8885 1 x Receiver 8884 Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.