NFC desktop wireless receiver connection for wireless/U disk/NFC/hands-free calling Bluetooth 5.3 chip transmits faster and more stably Signal is more stable and output is faster, with an overall improvement of 30% Upgrade NFC function to connect wirelessly in seconds<br><br>Skip the Bluetooth pairing process and automatically pair with the phone by tapping Multiple interface options to meet the needs of devices 3.5mm audio interface/ interface/USB interface for more devices U disk playback interface AUX audio interface (output) Dual-channel interface (output) Type-C power interface Wired device upgrades Bluetooth Mobile phone connects to old speakers in seconds Connect old speakers or amplifier AUX/ interface to solve the problem that the speaker has no Bluetooth and cannot use Bluetooth playback Intelligently compatible with devices Compatible with input signal sources such as /Android/, wireless transmission is compatible with all devices with audio input and output interfaces Colour:black Material:plastic<br><br>Package Contents: 1 x Bluetooth receiver<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.