Astrum BT300 Multi Device Bluetooth Audio Transmitter & Receiver V5.3, Dual Pairing, USB-C Fast Charging, AUX/TF, RGB Display SKU: A85030-B
The Astrum BT300 Wireless Audio Transmitter & Receiver is a versatile 2-in-1 Bluetooth adapter designed to bring wireless freedom to any wired audio setup. Whether you're streaming from your TV to Bluetooth headphones (TX mode) or receiving music from your phone to a car stereo or speaker (RX mode), the BT300 delivers seamless connectivity and high-fidelity sound.
Powered by Bluetooth 5.3, it supports dual pairing and multi device switching, allowing you to connect two devices simultaneously. The built-in rechargeable battery offers up to 13 hours of playtime, and with USB-C fast charging, you can top up quickly even while in use.
Flexible input options include 3.5mm AUX and TF card support (up to 64GB), while the digital display and intuitive knob interface provide real-time feedback and precise volume control. Compact and lightweight, the BT300 also features RGB lighting and a hands-free microphone, making it ideal for travel, home, or professional use.
Key Features
🔁 Dual Mode (TX/RX) – Transmit or receive Bluetooth audio
🔗 Bluetooth 5.3 + Dual Pairing – Connect two devices simultaneously
🔋 USB-C Fast Charging – Recharge in 2 hours, use while charging
🎧 Long Battery Life – Up to 13h (TX) / 11h (RX) / 6-month standby
💾 3.5mm AUX + TF Card Input – Supports up to 64GB
📟 Digital Display + Knob Control – Real-time status and volume adjustment
🌈 RGB Ambient Lighting – Stylish visual feedback
🎙️ Built-In Microphone – Hands-free calling support
🕒 12-Month Manufacturer Warranty – Reliable long-term performance
Technical Specifications
Feature Details
SKU A85030-B
Product Code BT300
Bluetooth Version 5.3
Bluetooth Range Up to 10 meters
Audio Decoding MP3, WMA, WAV, FLAC
Input Voltage 5V DC
Charging Time Approx. 2 hours
Working Time TX: 13h / RX: 11h
Standby Time Up to 6 months
Input/Output 3.5mm AUX, TF Card (up to 64GB)
Dimensions (L × W × H) 45 × 45 × 16 mm
Net Weight Approx. 33g
Warranty 12 Months Limited Manufacturer Warranty
What’s Included
1 × Astrum BT300 Bluetooth Transmitter & Receiver
1 × User Manual
Ideal Use Cases
📺 Stream audio from TVs or gaming consoles to Bluetooth headphones
🚗 Receive music from smartphones to car stereos or wired speakers
🎮 Share audio from two phones or connect two headphones simultaneously
🧳 Travel-ready wireless audio with RGB ambiance and long battery life