Make any audio device wireless with the Astrum BT150 2-in-1 Bluetooth Transceiver. This ultra-lightweight 11g device features dual Transmitter (TX) and Receiver (RX) modes, a built-in microphone for hands-free calls, and a standard 3.5mm AUX interface, offering a simple plug-and-play wireless solution for TVs, gym equipment, car stereos, and older home speakers.

The Astrum BT150 2-in-1 Bluetooth Transceiver is a versatile, pocket-sized audio adapter engineered to bridge the gap between traditional wired sound systems and modern Bluetooth peripherals. Weighing just 11g, this standalone hardware solution features an intuitive 3-position slider switch that lets you toggle instantly between Transmitter (TX) and Receiver (RX) configurations without requiring a computer, specialized applications, or software operating systems.

In Transmitter (TX) Mode, the BT150 plugs directly into any standard 3.5mm AUX audio source—such as older TVs, airplanes, threadmills, or desktop computers—and streams the audio signal directly to your wireless Bluetooth headphones or earbuds. Switched into Receiver (RX) Mode, the unit transforms any traditional wired speaker array, amplifier, or vintage car dashboard into a Bluetooth-enabled system, allowing you to stream music directly from your smartphone or tablet.

For added driving safety and workplace utility, RX mode activates an integrated HFP hands-free microphone, enabling you to answer, reject, or manage phone calls directly through your connected speakers. Driven by an advanced Bluetooth 5.2 chipset (supporting BR, EDR, and BLE), the adapter delivers clear, low-latency audio across a full 20Hz–20kHz frequency response range. The internal battery charges fully via USB-C in approximately 2 hours, making the BT150 a reliable travel companion to simplify your everyday media layout.