Product parameters:

Name: NFC Bluetooth Audio Receiver
Colour: Black
Material: ABS
Bluetooth version: V5.0+EDR
Bluetooth protocol: A2DP/AVRCP
Bluetooth distance: <15 meters
Interface: RCA/AUX/USB
Frequency range: 10Hz-20kHz
Signal to noise ratio: >110dB
Impedance: 75Ω
Size: 109*73*29mm
Support multiple audio output ports: can connect with 3.5mm headset, stereo system, speaker
Support USB 5V DC output, also can charge iPad, iPhone
System Support: All Bluetooth audio device; NFC available device

Package List :

1x NFC Bluetooth Audio Receiver;
1x Micro USB charging cable;
1x 3.5mm to RCA cable;
1x 3.5mm Audio Cable.