1. Introducción
This manual provides detailed instructions for the SONRU Bluetooth 5.0 Transmitter Receiver, Model BT1005. This versatile 2-in-1 adapter allows you to add Bluetooth functionality to various audio devices, enabling wireless audio transmission (TX mode) or reception (RX mode).
The device supports Bluetooth 5.0 for stable connections, aptX Low Latency for synchronized audio, and dual pairing for connecting to two devices simultaneously.
2. Contenido del paquete
- SONRU Bluetooth Adapter (BT1005)
- Cable de carga USB
- Cable RCA
- Cable AUX de 3.5 mm
- Manual de usuario

Figure 2.1: Included accessories with the SONRU Bluetooth Adapter.
3. Dispositivo terminadoview
The SONRU Bluetooth 5.0 Transmitter Receiver is a compact device designed for ease of use. It features a mode switch to toggle between Transmitter (TX) and Receiver (RX) modes, a multi-function button for power and pairing, and standard audio input/output ports.

Figure 3.1: SONRU Bluetooth 5.0 Transmitter Receiver device.
4. Configuración y uso inicial
4.1 Carga del dispositivo
Before first use, fully charge the device. Connect the supplied USB charging cable to the micro USB port on the adapter and the other end to a USB power source (e.g., computer USB port, USB wall adapter). The LED indicator will show charging status and turn off when fully charged. A full charge takes approximately 2 hours and provides up to 9 hours of continuous audio playback.

Figure 4.1: The device offers long working time after a full charge.
4.2 Encendido y apagado
- Encendido: Mantenga presionado el botón multifunción durante 3 segundos hasta que el indicador LED parpadee en azul.
- Apagado: Press and hold the multi-function button for 3 seconds until the LED indicator turns off.
5. Modos de funcionamiento
5.1 Modo transmisor (TX)
In TX mode, the device transforms a non-Bluetooth audio source (e.g., TV, computer, MP3 player) into a Bluetooth-enabled transmitter, allowing it to send audio wirelessly to Bluetooth headphones or speakers.
- Cambiar al modo TX: Slide the TX/RX switch to the 'TX' position.
- Conectar fuente de audio: Use the 3.5mm AUX cable or RCA cable to connect the adapter's audio input to the audio output port of your non-Bluetooth device (e.g., TV headphone jack, computer audio out).
- Emparejamiento: The adapter will automatically enter pairing mode (LED flashes blue and red alternately). Place your Bluetooth headphones or speaker in pairing mode. They should connect automatically. If not, manually select 'BT1005' from your receiving device's Bluetooth list.
- Emparejamiento dual: To connect a second Bluetooth receiving device, put the second device into pairing mode. Briefly press the multi-function button on the SONRU adapter. The adapter will search for and connect to the second device.

Figure 5.1: Transmitter Mode setup for various audio sources.

Figure 5.2: Dual pairing in action, allowing two Bluetooth headphones to connect simultaneously.
5.2 Modo receptor (RX)
In RX mode, the device adds Bluetooth functionality to your non-Bluetooth audio system (e.g., wired headphones, wired speakers, car stereo), allowing it to receive audio wirelessly from Bluetooth-enabled devices like smartphones or tablets.
- Cambiar al modo RX: Slide the TX/RX switch to the 'RX' position.
- Conecte la salida de audio: Use the 3.5mm AUX cable or RCA cable to connect the adapter's audio output to the audio input port of your non-Bluetooth audio system (e.g., AUX-in on car stereo, headphone jack on wired speakers).
- Emparejamiento: The adapter will automatically enter pairing mode (LED flashes blue and red alternately). On your Bluetooth-enabled device (e.g., smartphone), search for Bluetooth devices and select 'BT1005' to connect.

Figure 5.3: Receiver Mode setup for various audio receiving devices.
6. Funciones avanzadas
6.1 aptX Low Latency
The SONRU BT1005 supports aptX Low Latency technology, which significantly reduces audio delay, ensuring synchronized sound with video. This is particularly beneficial when watching TV or playing games, preventing noticeable lip-sync issues. For aptX Low Latency to function, both the transmitting and receiving devices must support aptX LL.

Figure 6.1: aptX Low Latency ensures synchronized audio for media consumption.
7. Mantenimiento y cuidado
- Limpieza: Utilice un paño suave y seco para limpiar el dispositivo. No utilice limpiadores líquidos ni aerosoles.
- Almacenamiento: Guarde el dispositivo en un lugar fresco y seco, alejado de la luz solar directa y de temperaturas extremas.
- Cuidado de la batería: Para prolongar la vida útil de la batería, evite descargarla por completo con frecuencia. Cargue el dispositivo regularmente, incluso si no lo usa durante períodos prolongados.
- Evite la humedad: No exponga el dispositivo al agua ni a la humedad excesiva.
8. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El dispositivo no se enciende. | Batería baja. | Cargue el dispositivo por completo. |
| No se puede emparejar con un dispositivo Bluetooth. | Device not in pairing mode; Bluetooth device too far; Interference. | Ensure the adapter is in pairing mode (flashing blue/red). Move devices closer. Turn off other Bluetooth devices. |
| No hay sonido o la calidad del sonido es mala. | Incorrect cable connection; Volume too low; Source/receiver not compatible. | Check all cable connections. Adjust volume on both the adapter and connected devices. Ensure correct mode (TX/RX) is selected. |
| Audio delay/lip-sync issues. | aptX Low Latency no activo. | Ensure both the transmitting and receiving devices support aptX Low Latency. |
| Dual pairing fails. | Second device not in pairing mode. | Ensure the second Bluetooth device is in its pairing mode before attempting to connect it to the adapter. |
9. Especificaciones
- Marca: SONRU
- Número de modelo: BT1005
- Tecnología de conectividad: Bluetooth
- Versión de Bluetooth: 5.0
- Características especiales: Low Latency, Dual Streaming + Automatic Connection
- Dispositivos compatibles: Desktop Computer, TV, Home Sound System, Headphones, Speakers, Car Stereo, Laptop, MP3/MP4 Players, Cell Phones, Tablets, Gaming Consoles
- Fuente de energía: Funciona con pilas
- Tipo de batería: Iones de litio (recargables)
- Tiempo de carga: Aproximadamente 2 horas
- Tiempo de trabajo: Up to 9 hours continuous audio playback
- Interfaz: USB, 3.5mm AUX, RCA
10. Garantía y soporte
For warranty information and technical support, please refer to the contact details provided on the product packaging or the official SONRU websitio. Guarde su recibo de compra para reclamos de garantía.



