The functions of RDA0017 and RDA0026 are identical, so I will choose one of the receivers to randomly emit
  1. 1 x USB Receiver
  2. Note: After receiving the receiver, you mustYou must pair the receiver with your headphones before you can use it

  3. To pair the device:

    1.Plug the wireless receiver dongle into the computer.

    2.With the dongle plugged in, locate the tiny hole near the dongle's LED.

    3.Using a paper clip, press into the hole until the dongle's LED begins to blink rapidly.

    4.Hold down the Power button on the side of the headset until the dongle's LED turns solid.