(To need to connect receiver and smartphone push the button on the Bluetooth device you just long.
Then alternately flashing red and blue light, then you will find the receiver on your phone under "DL-Link")
On the device there is a RX / TX switch to select what is to act as the Bluetooth device, an output / input and a charge jack.
The delivery will be delivered: 3.5mm audio cable, RCA cable and a charging cable for your device.
The capacity of the device is 250 mA, which should be enough for nearly 9 hours as manufacturers.
I tested the unit with my iPhone and my system or car radio.
I was surprised by the high quality, rich sound - no noise, all the best! And the best part is that my car radio has a USB jack, which I can use to charge the receiver while receiving / playing music! :-)
I can only recommend the Bluetooth transmitter / receiver, just perfect for older devices without Bluetooth function!
The small part also weighs very little and fits perfectly into your pocket. Also very useful to operate the system from the couch via smartphone :-)
I am impressed! Price is right and the function perfectly for me, buy recommendation !!