Introdução
The KAIY C52 Bluetooth Audio Receiver is designed to upgrade your existing home stereo systems, old speakers, or car audio systems with modern Bluetooth wireless capabilities. This device allows you to stream music seamlessly from your Bluetooth-enabled devices, offering versatile connectivity options and enhanced audio features.
It features support for RCA and 3.5mm AUX connections, NFC quick pairing, TF card music playback, and a 3D music surround sound mode for an immersive listening experience.
Conteúdo da embalagem
Por favor, verifique se todos os itens estão presentes na embalagem:
- Receptor Bluetooth KAIY C52
- Cabo AUX
- Cabo RCA
- Cabo USB
Produto acimaview
Familiarize yourself with the components and interfaces of your KAIY C52 Bluetooth Audio Receiver.

Figure 1: KAIY C52 Bluetooth Receiver Components. This detailed diagram highlights the various components and interfaces of the KAIY C52 Bluetooth Receiver. Labels point to the Multi-function Button, NFC Sensing Area, AUX Interface, RCA Interface, Power Interface (DC-5V), and TF Card Port. The image also includes the device's dimensions: 2.71 x 0.94 x 2.71 inches.
- Botão multifuncional: Used for power on/off and 3D sound mode activation.
- NFC Sensing Area: Para emparelhamento rápido com dispositivos habilitados para NFC.
- Interface AUX: 3.5mm audio output for connecting to speakers or receivers.
- Interface RCA: Red and white audio outputs for connecting to speakers or receivers.
- Power Interface (DC-5V): USB-C port for power input.
- Porta do cartão TF: Slot for inserting a TF (microSD) card for direct music playback.
Instruções de configuração
Follow these steps to set up your KAIY C52 Bluetooth Audio Receiver:
- Conexão de energia:
Connect the provided USB cable to the DC-5V power interface on the receiver. Plug the other end of the USB cable into any standard USB outlet or phone charger. The device requires a 5V power source.

Figure 2: Device and Cables. This image displays the KAIY C52 Bluetooth Audio Receiver, a compact black square device, alongside its essential connection cables: a USB power cable, an RCA audio cable (red and white connectors), and a 3.5mm AUX audio cable. The device features input ports for power, RCA, and AUX, as well as an NFC sensing area on top.
- Conexão de saída de áudio:
Choose one of the following methods to connect the receiver to your audio system:
- Conexão RCA: Use the provided RCA cable. Connect the red and white plugs to the corresponding RCA input ports on your stereo receiver or speakers.
- Conexão AUX: Use the provided 3.5mm AUX cable. Connect one end to the AUX interface on the receiver and the other end to the 3.5mm audio input on your speakers or receiver.

Figura 3: Opções de conectividade. Esta imagem fornece uma visão traseira view of the KAIY C52 Bluetooth Receiver, highlighting its DC-5V power input, RCA (red and white) audio output, and AUX 3.5mm audio output ports. Below, a diagram demonstrates the device's versatile connectivity, showing it can connect to phones/tablets, laptops, AV receivers, home stereos, and car audio systems via Bluetooth, RCA, or AUX.
- Emparelhamento Bluetooth:
Once powered on, the receiver will automatically enter pairing mode. The indicator light will flash, indicating it's ready to connect.
- Emparelhamento Bluetooth padrão: No seu smartphone, tablet ou outro dispositivo com Bluetooth, acesse as configurações de Bluetooth. Procurar available devices and select "C52" from the list to connect.
- Conexão rápida NFC: If your device supports NFC, simply bring your NFC-enabled smartphone or tablet close to the NFC sensing area on the top of the KAIY C52 receiver. Your device should automatically prompt you to connect.

Figure 4: NFC Quick Connect. A hand holds a smartphone near the KAIY C52 Bluetooth Receiver, with the phone's screen indicating an NFC connection. This demonstrates the device's NFC quick connect feature, allowing for instant pairing by simply touching an NFC-enabled smartphone or tablet to the receiver.

Figure 5: Easy Setup Steps. This composite image illustrates the 'Easy Setup' process for the KAIY C52 Bluetooth Receiver in three steps: 'Plug' shows connecting power and audio cables, 'Pair' shows a smartphone connecting to 'C52' via Bluetooth or NFC, and 'Enjoy' shows a smartphone streaming music to a connected stereo system.
Vídeo de demonstração de configuração
Video 1: Bluetooth Receiver Adapter for Home Stereo. This video demonstrates the basic setup and connection process of the KAIY C52 Bluetooth Receiver with a home stereo system, showing how to connect cables and pair a device.
Instruções de operação
Once connected, you can begin enjoying wireless audio:
- Reconexão automática: After initial pairing, the KAIY C52 receiver will automatically attempt to reconnect to the last paired device when powered on, provided the device's Bluetooth is active and within range.
- Streaming de música sem fio: Play audio from your paired smartphone, tablet, or computer. The audio will be transmitted wirelessly to your connected speakers or stereo system.

Figure 6: Wireless Music Streaming. The KAIY C52 Bluetooth Receiver is shown connected to a white home stereo system with two speakers. A smartphone displaying a music app is wirelessly connected to the receiver, illustrating how the device converts traditional speakers into Bluetooth-enabled ones for music playback.
- TF Card Music Playback: Insira um cartão TF (microSD) com áudio. files into the TF Card Port. The receiver will automatically detect and play music from the card.

Figure 7: TF Card Playback. The KAIY C52 Bluetooth Receiver is shown with a TF (microSD) card partially inserted into a slot on its side. This illustrates the device's capability to play music directly from a TF card, offering an alternative to Bluetooth streaming.
- 3D Music Surround Mode: Press the Multi-function Button (often labeled "3D" or similar) to activate or deactivate the 3D music surround sound mode. This mode enhances the audio experience by creating a more immersive soundstage.

Figure 8: 3D Surround Sound. This image shows the KAIY C52 Bluetooth Receiver placed on top of a speaker, with a visual representation of a '3D' sound effect emanating from it. The background features a group of people enjoying an outdoor gathering, suggesting the immersive audio experience provided by the device's 3D music playback mode.
- Alcance sem fio estendido: The receiver offers a wireless range of up to 33 feet (approximately 10 meters) without obstacles. This allows you to control your music from various locations within your home or outdoor space.

Figure 9: Wireless Range. The KAIY C52 Bluetooth Receiver is positioned in a living room, with concentric circles radiating from it, symbolizing its 33-foot wireless Bluetooth connection range. A person in the background is using a tablet, implying the freedom to control music from a distance within the specified range.
Manutenção
To ensure the longevity and optimal performance of your KAIY C52 Bluetooth Audio Receiver, please follow these maintenance guidelines:
- Limpeza: Use a soft, dry cloth to clean the device. Avoid using liquid cleaners, aerosols, or solvents, as these may damage the surface or internal components.
- Armazenar: Quando não estiver em uso por longos períodos, guarde o dispositivo em local fresco e seco, longe da luz solar direta e de temperaturas extremas.
- Manuseio: Manuseie o dispositivo com cuidado. Evite deixá-lo cair ou submetê-lo a impactos fortes, que podem causar danos internos.
- Ambiente: Mantenha o dispositivo longe de água, umidade e poeira excessiva.
Solução de problemas
If you encounter issues with your KAIY C52 Bluetooth Audio Receiver, refer to the following common problems and solutions:
| Problema | Possível causa | Solução |
|---|---|---|
| Sem energia | Power cable not connected properly or power source issue. | Ensure the USB cable is securely connected to the receiver and a working USB power source. Try a different USB port or power adapter. |
| Não é possível emparelhar via Bluetooth. | Device is out of range, Bluetooth is off, or already paired to another device. |
|
| Sem saída de som | Audio cables not connected, incorrect input selected on stereo, or volume too low. |
|
| Poor Audio Quality / Hissing | Interference, low-quality audio source, or faulty cables. |
|
| NFC Pairing Not Working | NFC is disabled on your device or incorrect placement. |
|
Especificações
| Recurso | Detalhe |
|---|---|
| Número do modelo | C52 |
| Dimensões do produto | 2.71 x 0.94 x 2.71 polegadas |
| Peso do item | 3.52 onças |
| Tecnologia de Conectividade | Bluetooth, NFC, Auxiliary (3.5mm), RCA |
| Fonte de energia | Corded Electric (DC-5V via USB) |
| Distância wireless | Até 10 metros (33 pés) sem obstáculos |
| Características especiais | Bluetooth audio adapter, Bluetooth audio receiver, Bluetooth stereo converter, Bluetooth to AUX adapter, Stereo Bluetooth adapter, TF card playback, 3D sound mode |
| Material | Metal, Plástico |
Informações de segurança
Por favor, leia e siga as seguintes diretrizes de segurança:
- This device emits radio waves and may interfere with other wireless devices.
- Do not expose the device to excessive heat or moisture.
- Dispose of the device and any associated components according to local regulations.
- Não tente desmontar ou modificar o dispositivo. Isso pode anular a garantia e causar danos.
Garantia e Suporte
KAIY products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided with your purchase or visit the official KAIY website.
For further assistance, please contact KAIY customer service.





