NFC Bluetooth 5.3 Audio Receiver Aux Rca Usb Adapter + Mic

1. It's a Bluetooth audio receiver only, not a transmitter. Can only be used for audio transmission, so you couldn't use it for your keyboard, mouse, file transfer. NFC bt 5.3 audio receiver - Product parameter: - product name: nfc bluetooth 5.3 audio receiver - Output parameter: dc 5v - Bluetooth version: v5.3+edr - Bluetooth protocol: a2dp/avrcp - Bluetooth distance: 10 meters - Interface: r l rca/3.5mm aux stereo/usb u-disk/tf card/ - Support mic: Yes, with microphone handsfree calling - Frequency range: 10hz-20khz - Signal to noise ratio: >110db - Product size: 68mm*58mm*21.8mm - Function description: with microphone hands-free call, nfc connection, usb u-disk play,tf card play, Bluetooth connection. - Support multiple audio output ports: can connect with 3.5mm headset, stereo system, speaker.