BLITZWOLF BLUETOOTH 4.1 ADAPTER/ RECEIVER-TRANSMITTER. Please Read B4 U Buy: Simply plug this little beasty into Your Audio Device ("Plug'n Play") & Voila (that's 'Woller''), instant Wireless Music, audio program. It's really that simple. So, add the convenience of Wireless 'streaming' to Your speakers, from laptop to speakers, whatever & hear Your soundz/ music, Your way. My latest use is pairing the Sony 75 inch with a pair of Denon AGC Globemaster Headphones for an absolutely stunning, Audial Feast & gorgeous APTX Concert, late at night - BlitzWolf's amazing little peice of BT 4.1 Wizardry, pairs like a dream & backwards searches for Your device while the Device pairs frontwise. I also have one in the motor, pairing with the 'Aux-In' port One caveat - Jest be aware that ''NOTHING'' will pair with Your 15 year old telly or that 7 year old pair of AKG's that You love - These work optimally with new tech ( ie BT 4.1; NFC, APTX, etc Codecs, Protocols): While the BT Wireless will search fwd & back, it may well pair with other devices in Your & Your neighbour's house but it wont identify BT 2.0 Devices & if it does that's jest freak'n anomalous luck. SO, If U have any doubts about this working 4 U, DONT BUY/ BID - Either ask a techo friend for advice/ Research BT Adapter Devices on Google OR Go into Your friendly Techo-Whizzo at Jaycar/ Noel Leeming/ PB Electronics & tell them what You are trying to achieve & ask for Guidance.