Instructions of Use:
Turn on the game controller, insert the dongle into the USB ports. Press the dongle button 2 seconds, the LED indicator starts flashing slowly, which means dongle entering the pairing mode. Turn on your for headset and pair it. The LED indicator will turn blue when connecting successful. The for headsets and the for dongle will automatically pair in the later time you use.

Specifications:Item Type: Mini USB 2.0 AdapterStandard: For 5.1
HCI Interface: USB2.0
Transmission Range: Approx. 10M / 32.8ftConnection: Piconet / Scatternet Support
For Protocol: A2DP, HFP, HSP
Output Power: 0~+4dBm
Receiving Sensitivity: ~75dB
Frequency Band: 2.4G ISM band
Audio Codec: 16bit codec
Working Voltage: 5V
Color: Black
Package Weight: Approx. 23g / 1.1oz
Size of the Transmitter: Approx. 3.5 x 2.0cm / 1.38 x 0.79 inch
Length of the Receiver: Approx. 1.1inch

Package Included:
1 x For Dongle USB Adapter for PS4

Note:
Question: you can't listen to the music when using, only connect the auxiliary cable with the controller, it just appears the sound not music .
Solution: you can set at host audio and turn the off into on, then you can listen to the background music.