2-in-1 Bluetooth Transmitter and Receiver Wireless A2DP Adapter Music Receiver with 3.5mm for Tablet Laptop TV Speaker?

Bluetooth-enable all 3.5mm media devices (enable Bluetooth receiving: speakers, headphones and more; enable Bluetooth transmission for: MP3, CD / DVD players, e-readers, TVs and more).
Simple one-button switch to shift between transmitter(TX) and receiver(RX) mode. Note: This device has the function of receiver and transmitter.
Extra-long built-in battery provides up to 10 hours playing time and only need 1.5 hours to charge it fully
Two-link: can connect two Bluetooth devices at the same time. Over length receiving distance, can reach up to 30 feet in open space without cables.