1.[Bluetooth Receiver/Transmitter] M12 Pro Bluetooth Receiver and Transmitter can transmit music from your cell phone,computer or tablet to any of your home stereo system via Bluetooth.It can also transmit music from your TV,computer,projector,amplifier to Bluetooth headphones or speakers (automatic proximity connection) Plug and play, easy to use Note: After rotating the power on button, long press the RX/TX mode, then double press the power on button to enter pairing mode, BLUE fast flash! 2.[Bluetooth 5.2 & aptX Low Latency]The latest high-performance DSP Bluetooth 5.2 technology ensures a more stable and reliable connection. Adopts aptX low latency technology, supports various Bluetooth audio codec protocols,including SBC,AAC,aptX,aptX-LL and aptX-HD,with powerful decoding capabilities,which can restore CD-quality high-fidelity stereo sound.Perfect for streaming audio from your TV,home stereo,or game console.Note: To achieve low latency,the Bluetooth device you are using (e.g. Bluetooth headset) must support aptX low latency 3.[Dual Microphone Wireless Karaoke]We upgraded with 2 wireless microphones, power on that is connected without the need for cumbersome pairing, the microphone can be adjusted to the total output volume and microphone volume, easy to use, dual microphone suitable for duets and group performances, ideal for family entertainment or parties, etc., no tangled wires and cables, and friends or family members to enjoy the unrestrained singing! Note: For the first time pairing, you need to turn on the microphone and three clicks to enter the pairing mode, and then turn on the product, it can be automatically paired! 4.[Upgraded Knob & RGB Design]You can use the knob to switch on/off, adjust the volume, as well as the bass and treble control knobs, which can easily handle the powerful live sound. Upgraded RGB bottom light design, using different state of different colors change, full sense of atmosphere. 5.[Digital Display]Practical LED screen, easy to use, visual screen will show the Bluetooth adapter in the decoding format, pairing status, volume, high and low sound and light effect adjustment status and other information is clearly presented, so that your operation is more intuitive, more simple!