The Bluetooth 4.0 wireless receiver with USB plug audio adapter has a built-in 3.5 mm AUX jack cable
  Characteristics
  Product Type: Bluetooth Audio Receiver
Material: ABS
Product color: Black
Bluetooth version: 5.0
Frequency range: 2.4 GHz
Supports A2DP V1.2, VCRCP, AVDTP, HFP and HSP
Main stereo support
Audio ports USB plug and hide
Signal transmission range: 8-10m / 26-33ft
  I / s: 3.5 mm AUX jack, USB jack
Power supply: DC 5 V