Bluetooth 5.3 Audio Receiver LTC LXTR250 with AUX Output and Built-in Microphone

LTC LXTR250 is a compact Bluetooth 5.3 audio receiver designed to enable wireless audio streaming to devices with a 3.5 mm AUX input. The unit provides stable Bluetooth connectivity for music playback and supports hands-free calling via an integrated microphone. Its compact form factor and standard AUX output make it suitable for connecting to home audio systems, car stereos, portable speakers and other non-Bluetooth devices that accept a wired line-in.

Advantages

The Bluetooth 5.3 module ensures improved connection stability and lower latency compared with older Bluetooth versions, while the 3.5 mm output provides broad compatibility with most auxiliary inputs. An integrated microphone allows the receiver to be used for phone calls without additional accessories. The device’s small footprint and simple wiring make installation quick and unobtrusive, and its low power consumption supports extended use when connected to a vehicle or external power source.

Suitable for

• Adding Bluetooth streaming to home stereos and bookshelf speakers with AUX input
• Upgrading car audio systems that lack native Bluetooth support
• Connecting portable speakers or docking stations to smartphones and tablets
• Hands-free calling through a vehicle or stationary audio system

Key specifications

• Bluetooth version: 5.3 for enhanced stability and reduced latency
• Audio output: 3.5 mm AUX analog output for line-level connection
• Integrated microphone for hands-free calls
• Form factor: compact, lightweight receiver suitable for discrete placement
• Power supply: powered via USB or vehicle power adapter (external power required)

How to use

Connect the 3.5 mm AUX output of the LTC LXTR250 to the AUX input of your speaker, car stereo or other audio device. Power the receiver using a compatible USB power source. Activate Bluetooth on your phone or source device, search for available devices and pair with the receiver according to standard Bluetooth pairing procedures. Once paired, audio from the source device will play through the connected audio system; incoming calls will be routed to the integrated microphone and audio output for hands-free operation.

Usage recommendations

Place the receiver where it has clear line-of-sight to the paired device to maintain optimal Bluetooth signal strength. Use a short, good-quality 3.5 mm cable for the best analog audio performance. If using in a vehicle, connect the power to a stable 5V USB supply to avoid power interruptions during playback or calls.