Huina 350 550, Huina remote control and receiver. This 15-channel can control 6 small motors forward and backward. The remote control is equipped with 2 1.5V ordinary batteries (must be provided), the voltage must not exceed 3V. Receiver motherboard voltage: 7.2V

(small power board) When the input voltage is 7.2V, the output voltage of each group of motors is about 5.4V, Remote control frequency: 2.4GHZ

the signal is stable, the remote control distance is long. About 2.4GHZ frequency remote control: In theory, 2.4GHZ

frequency can accommodate up to 400 frequencies, which can be used by multiple people without mutual interference. Simply put, if you buy two or more 2.4GHZ remote control frequency toy cars, play without interference, this low-frequency remote control cannot do. Therefore, the 2.4GHZ frequency must be paired before use. Even if there are many 2.4GHZ remote control cars around, it will not interfere.

Frequency method: the power switch of the remote control switch and the receiving board can be turned on at the same time, or the power switch of the receiving board can be opened first, and then the power switch of the remote control can be turned on immediately (1~5 seconds). At this time, the indicator light of the remote control will flash, that is, automatically. The frequency state, until the flash does not flash, it means that the frequency is completed, usually within 10 seconds will be completed; then you can start to use it. By pressing the respective buttons, the corresponding motor will be controlled to reverse.

Wiring instructions: The power supply must be DC voltage 6V-7.2V, please

look for the positive and negative poles of the power supply, not reversed, burn out at your own risk. color: yellow Material: plastic Size: 8.9CM*4.5CM

Package Contents: 1 * remote control (without battery) 1 * receiving board with speaker 1 * screwdriver (packaged in zipper bag) Only the above package content, other products are not included.

Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.

The measurement allowed error is +/- 1-3cm.