Use the 1Mii B03Pro+ as a Bluetooth 5.3 receiver to stream music from any phone, tablet, laptop, or desktop to the home stereo you already own, or as a transmitter to connect Bluetooth headphones or speakers to your existing TV.LDAC support for both transmitting and receiving delivers high resolution wireless audio up to 96kHz when your paired device also supports LDAC (in transmit mode, LDAC works with one Bluetooth headphone or speaker).aptX Low Latency keeps TV sound in sync with the picture when your headphones support it. Transmit mode codecs: LDAC, aptX HD, aptX Low Latency, aptX, SBC. Receive mode codecs: LDAC, aptX HD, aptX Low Latency, aptX, AAC, SBC.Bypass Mode streams audio to wireless headphones and a wired TV soundbar at the same time, so everyone can set their own volume.Built in display shows the mode, connected device, and audio format for easy pairing, with volume control buttons.Optical, RCA, and 3.5mm AUX inputs and outputs. Cannot operate in transmit and receive modes at the same time.Stable connection up to 65 ft indoors and 115 ft outdoors in open areas (range varies with walls, metal, and Wi-Fi). USB-C powered (DC 5V). Size 4.33 x 3.27 x 0.99 inches, weight 3.64 oz.Condition Notes: This item is Open Box; The retail packaging has been opened for inspection, shows no signs of use.This item was opened and inspected prior to listing to confirm it functions properly and all parts are included.