Introduction
The OQIMAX BT-13 Bluetooth 5.3 Audio Transmitter Receiver is a versatile device designed to transform your non-Bluetooth audio equipment into wireless-enabled systems. It supports both transmission (TX) and reception (RX) modes, allowing you to stream audio wirelessly from various sources to headphones or speakers, or from your mobile device to older audio systems. Featuring advanced Bluetooth 5.3 technology, it ensures stable connections, high-quality audio, and includes a built-in microphone for hands-free calling.
Product Overview
Key Features
- 2-in-1 Transmitter & Receiver: Easily switch between TX and RX modes to suit your audio needs.
- Bluetooth 5.3 Technology: Provides a stable, fast, and energy-efficient wireless connection.
- Wide Compatibility: Connects to a variety of devices including TVs, PCs, car stereos, home audio systems, headphones, and smartphones.
- Hands-Free Calling: Integrated microphone for safe communication while driving or during other activities.
- Long Battery Life: Up to 14 hours in RX mode and 11 hours in TX mode on a single charge.
- Noise Cancellation: Enhances audio clarity during calls and music playback.
- Portable Design: Compact and lightweight for easy transport and use anywhere.
Device Components
- AUX Connector: 3.5mm jack for audio input/output.
- '+' Button: Click for next song, long press to increase volume.
- '-' Button: Click for previous song, long press to decrease volume.
- 'M' Button (Multifunction): Used for power on/off, pairing, and other functions depending on the mode.
- Indicator Light: Displays device status (pairing, connected, charging).
- TX/RX Switch: Toggles between Transmitter and Receiver modes.
- Charging Port: USB Type-C port for charging the device.
Setup
Before using your OQIMAX BT-13, ensure it is fully charged. Connect the provided Type-C charging cable to the device and a 5V/1A power source. The indicator light will show charging status.
The device can be used while charging.
Operating Instructions
TX Mode (Transmission Mode)
Use TX mode to transmit audio from non-Bluetooth devices (e.g., TV, desktop computer) to Bluetooth headphones or speakers.
- Switch to TX Mode: Slide the TX/RX switch on the adapter to the "TX" position.
- Connect to Audio Source: Insert the adapter's 3.5mm AUX connector into the headphone jack or audio output port of your audio source (e.g., TV, computer).
- Power On: Press and hold the multifunction button (M) for 3 seconds to power on the device. The red indicator light will flash, indicating it's in pairing mode.
- Pair with Bluetooth Device: Turn on your Bluetooth headphones or speaker and set them to pairing mode.
- Connection: The adapter will automatically search for and connect to your Bluetooth device. Once connected, the red indicator light will flash slowly.
Note: The first connection may take a few seconds. Subsequent connections will be automatic. If pairing fails, power off both the adapter and the Bluetooth device, then repeat the steps. Double-click the multifunction button to initiate a new search if needed.
When connecting to a TV, ensure you use an audio output port (RCA or 3.5mm), not an audio input port.
RX Mode (Reception Mode)
Use RX mode to receive audio from Bluetooth-enabled devices (e.g., smartphone, tablet) and play it through non-Bluetooth speakers or car stereos.
- Switch to RX Mode: Slide the TX/RX switch on the adapter to the "RX" position.
- Connect to Audio Output Device: Insert the adapter's 3.5mm AUX connector into the AUX input port of your speaker, car stereo, or wired headphones.
- Power On: Press and hold the multifunction button (M) for 3 seconds to power on the device. The blue indicator light will flash, indicating it's in pairing mode.
- Pair with Smartphone/Tablet: On your smartphone or tablet, go to Bluetooth settings, search for "BT-13", and select it to pair.
- Connection: Once connected, the blue indicator light will flash slowly. You can now stream music wirelessly.
Note: After the first successful pairing, your phone will automatically reconnect to the adapter the next time it's powered on.
Hands-Free Calling (RX Mode)
When in RX mode and connected to your smartphone, the built-in microphone allows for hands-free calls.
- Answer/End Call: Press the multifunction button (M) once.
- Reject Call: Press and hold the multifunction button (M) for 2 seconds.
- Redial Last Number: Double-click the multifunction button (M).
Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the device frequently. Charge it regularly, even if not in use for extended periods.
- Avoid Water: This device is not waterproof. Keep it away from liquids.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery. | Charge the device using the provided USB-C cable. |
| Cannot pair with a Bluetooth device. | Device not in pairing mode; Bluetooth device too far; interference; incorrect mode (TX/RX). |
|
| No audio output/input. | Incorrect cable connection; wrong audio port; volume too low. |
|
| Poor audio quality or disconnections. | Distance too far; obstacles; interference. |
|
Specifications
| Feature | Detail |
|---|---|
| Model | BT-13 |
| Bluetooth Version | V5.3 |
| Audio Decoding | SBC |
| Supported Protocols | HSP, HFP, A2DP, AVRCP |
| Transmission Range | ≤ 10m (33 feet) |
| Input Power | 5V / 1A |
| Input Port | AUX |
| Product Dimensions | 101.8 mm x 28.5 mm x 14 mm (approx. 4.0 x 1.1 x 0.55 inches) |
| Product Material | ABS |
| Net Product Weight | 20g (approx. 0.7 oz) |
| Battery Life (RX Mode) | Up to 14 hours |
| Battery Life (TX Mode) | Up to 11 hours |
| Charging Time | Approx. 2 hours (via Type-C) |
Package Contents
- 1x OQIMAX Wireless Audio Adapter (BT-13)
- 1x Type-C Data Cable
- 1x Product Manual
Safety Warnings
WARNING:
- This product emits radio frequencies and contains a battery. To avoid interference with other wireless devices, maintain a safe distance from them.
- Always follow the battery handling and disposal instructions provided with the product.
- Do not expose the device to extreme temperatures, direct sunlight, or moisture.
- Do not attempt to disassemble or modify the device. This may void the warranty and cause damage.
- Keep out of reach of children.
Warranty and Support
Information regarding specific warranty terms and customer support contact details is not available in the provided product description. Please refer to the official OQIMAX website or contact your retailer for warranty information and technical support.
