Astrum BT300 Multi-Device Wireless Audio Transmitter & Receiver

Multi-device Wireless transmitter and receiver with dual-mode functionality, the Astrum BT300 allows seamless wireless audio transmission from your wired devices such as HDTVs, car stereos, or speakers. Whether you’re streaming from your TV to Bluetooth headphones or receiving music from your phone to a wired speaker, this adapter enhances any setup with wireless freedom.

Equipped with the latest Bluetooth 5.3 technology, the BT300 supports automatic pairing and can connect to two devices at once, enabling you to stream from both simultaneously. You can effortlessly switch between devices-such as sharing music from two phones on one wired speaker or connecting to two wireless headphones in TX mode for a truly shared audio experience.

The built-in rechargeable battery delivers up to 13 hours of continuous playtime, and with USB-C fast charging, you can quickly top up the battery and even use the device while charging-ideal for extended use at home, on the road, or during travel.

Flexible input options include 3.5mm AUX and TF card support (up to 64GB), making it compatible with a variety of devices from gaming consoles and PCs to stereos and amplifiers. An intuitive knob interface and dynamic display allow for precise volume control and real-time information, such as battery life and connection status.

Compact, lightweight, and designed for convenience, the BT300 also includes a hands-free mic for calls, RGB light accents, and high-fidelity support for formats like MP3, WAV, and lossless FLAC.

Features:

• Dual Mode: Transmit & receive wireless audio
• Supports simultaneous connection of two devices in TX mode
• Multi-device pairing with easy switching
• USB-C fast charging with up to 13 hours of playtime
• Hands-free microphone for calls
• 3.5mm AUX and TF card input (max 64GB)
• RGB lighting and digital display for clear status updates
• Compact and portable design for use anywhere
• High-res audio decoding: MP3 / WMA / WAV / lossless FLAC

Technical Specifications:

• Bluetooth Version: 5.3 (range up to 10m)
• Decoding: MP3 / WMA / WAV / FLAC
• Input Voltage: 5V DC
• Charging Time: 2 hours (approx.)
• Working Time: RX – 11 hours / TX – 13 hours
• Dimensions: 45 x 45 x 16mm
• Weight: 33g
• Input/Output: 3.5mm AUX, TF card (up to 64GB)

What’s in the box
1 x Transmitter/Receiver
1 x User Manual