LOW DELAY: aptX Low Latency for high-fidelity stereo sound with lag-free content streaming in transmitter mode. A low latency supported Bluetooth receiver is required. MAKE IT TWO: Upgraded 2-in-1 Bluetooth transmitter pairs with two Bluetooth receivers, such as headphones and speakers, simultaneously. Note: aptX Low Latency does not support dual link mode. ALWAYS ON: TaoTronics Bluetooth 2-in-1 adapter streams continuously while charging. Built-in battery provides up to 10 hours of use for uninterrupted wireless listening. BLUETOOTH EVERYWHERE: In transmitter mode, connects to non-Bluetooth devices like TVs, PCs, CD players, iPods, MP3/MP4 players to enable Bluetooth streaming. In receiver mode, ideal for home or car audio systems. PURE SOUND: aptX audio codec delivers rich, detailed sound quality for an enhanced listening experience. Enjoy CD-like audio performance. Includes extended warranty and 24/7 customer support.