【164FT LONG RANGE】With Class 1 Bluetooth technology, the 1Mii Bluetooth receiver can achieve a range of up to 164ft (50m) line-of-sight in open air and up to 50-70ft (20-30m) indoors(without obstacles).

【Hi-Fi SOUND WITH 3D AUDIO】It features CSR Bluetooth 4.2 chip to ensure high fidelity transmission of Bluetooth audio signal for music streaming to those speakers or home stereo systems that doesn't have the capability. It also supports aptx and aptX Low Latency (aptx-LL). 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.

【POWER ON AND RECONNECT AUTOMATICALLY】When plugged into a power outlet, the Hi-Fi Bluetooth audio receiver can power on automatically and reconnect with the previously paired device.

【EASY SETUP, EASY TO USE】Easy plug, pair and play. This updated unit comes with a USB power adapter. Plug into computer speakers, home stereo systems or other speaker systems via the 3.5 mm or RCA cable, then pair with the Bluetooth audio devices such as smartphones or tablet. After that, you can enjoy the music. This product is a receiver only, NOT a transmitter.

【WORKS WITH VOICE COMMANDS】Connect this Bluetooth adapter to your speaker via a 3.5mm jack or RCA cable, pair the 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 speaker, not with the Echo.