Brand new, sealed. High-Resolution audio solution: 1Mii B03Pro+ featured with LDAC and aptX HD as a truly wireless, high-resolution audio solution to compatible with different Bluetooth devices. Bring Old Stereo Back to Life: Use B03Pro+ as a Bluetooth receiver, it can bring your old stereo back to life. Connect your smartphone or tablet via Bluetooth for a high-resolution, low delay listening experience. - Works With Voice Commands: Use B03Pro+ as a Bluetooth receiver, connect it to your speaker by audio cable, pair the B03Pro+ with your Echo via Bluetooth on the Alexa app, it is easy to control your music with voice commands. - Splitter for Wired and Wireless: B03Pro+ Bluetooth Transmitter supports you to hear from wireless headphones and wired Speakers / sound bar at the same time. This allows the headphone user to listen at a different volume level when watching TV with families; a perfect solution for family use. Long Range Strong Connection: 1Mii B03Pro+ long range Bluetooth