DUAL ANTENNAS&LONG RANGE With dual antennas and class 1 Bluetooth technology, the 1Mii B06Pro Long Range Bluetooth receiver can achieve a range of up to 197ft (60m) line-of-sight in the open air and up to 50-70ft (20-30m) indoors(without obstacles). NOTE: operation range can be affected by Wi-Fi routers or antennas on the stereo receiver, etc. APTX LOW LATENCY&HD&3D AUDIO 1Mii B06Pro Bluetooth receiver for home stereo features Bluetooth 5.3 chip to ensure high fidelity Bluetooth audio signal for music streaming to speakers or home stereo systems that don t have the capability. This Bluetooth adapter also supports aptX Low Latency and aptX HD. And the 3D audio can be switched on or off by pressing the 3D button on the Bluetooth audio receiver. The green LED will be on when switched to 3D audio. VOLUME & TRACK ADJUSTMENT Press the volume button on the 1Mii B06Pro Bluetooth receiver to volume up and down. Press and hold the volume button for 2 seconds to do next or previous track. (NEW FUNCTION) OPT&AUX&COAXIAL, EASY SETUP Easy plug, pair and play. Plug into computer speakers, home stereo systems or other speaker systems via the 3.5 mm, RCA, coaxial or optical cable, then pair the Bluetooth receiver with the Bluetooth audio devices such as smartphones or tablet. After that, you can enjoy the music. NOTE: This product is a receiver only, NOT a transmitter. WORKS WITH VOICE COMMANDS Connect this 1Mii B06Pro Bluetooth audio adapter to your stereo via a 3.5 mm, RCA or optical cable, pair the Bluetooth receiver with your Echo via Bluetooth on the Alexa app, it is easy to control your music with voice commands. Please make sure to use the audio cable to connect the Bluetooth receiver with your stereo, not with the Echo. PRE-PURCHASE NOTICE The B06Pro is only a receiver, paired with phone/tablet. It is NOT a Bluetooth transmitter. It CANNOT work with Bluetooth headphones and TVs.