Long range NFC Bluetooth 5.1 audio receiver with remote.Has usb and micro sd card slot for music playback.The NFC makes it easier for connecting with device, just bring your device closer then it pairs and connects.Has equalizer to change music playback to user preference. Hi-fidelity audio gives audio the best quality quality playback too. Buy and give life to your Audio system that doesn’t support Bluetooth in both home and cars.