Bluetooth Transmitter Receiver 2 IN 1 Wireless Audio 3.5mm Aux Adapter Features: 2-in-1 Bluetooth Transmitter Receiver with aptX & aptX Low Latency. supports the latest Bluetooth V4.2 Now you don’t have to pay a high premium to get aptx LL-enabled wireless headphones or speakers; instead, your wired headphones or speakers can be easily turned into wireless audio devices with low latency Built-in battery for portable use, fast-charging it through the USB cable. Specification: Output: DC 12V 30A Bluetooth Compliance: Bluetooth V4.2, A2DP, and AVRCP Transmit Range: up to 33ft / 10m Supports: Dual Stream Codec: aptX Low Latency, aptX, SBC Charging Time: 2 hours; can be used while being recharged Charging input voltage: DC 5V Power Supply: 3.7V Dimension: 5 x 2.6x0.9cm(2x1x0.3inches) Package Includes: 1 * Bluetooth Transmitter/Receiver 1 * USB charging Cable 1 * 3.5MM Audio Cable 1 * User Manual