LOW LATENCY: aptX Low Latency for high-fidelity stereo sound, lag-free content streaming in transmitter mode. Bluetooth receiver supported with low latency is required. MAKE IT TWO: Upgraded 2-in-1 Bluetooth transmitter can pair with two Bluetooth receivers (like headphones + speakers) simultaneously. Note: aptX Low Latency does NOT support Dual Link mode. ALWAYS ON: TaoTronics Bluetooth 2-in-1 adapter streams continuously even while charging. Built-in battery for up to 10 hours of use - enjoy your favorite wireless content all the time. BLUETOOTH EVERYWHERE: In transmitter mode, turn a non-Bluetooth TV, PC, CD player, iPod, MP3/MP4 into Bluetooth transmitter. Receiver mode: Ideal for music streaming sound system at home or vehicle. PURE SOUND: aptX audio codec for a richer and deeper sound experience. Listen to CD-like audio quality without compromise. Plus, 12 + 6 months extended warranty and 24/7 friendly customer service.