1. Introducción
Welcome to the KAYOTOM AT-600 4G LTE Push-to-Talk (PoC) Walkie Talkie user manual. This device is designed for reliable, long-range communication utilizing 4G LTE cellular networks, offering nationwide coverage without traditional range limitations. It is ideal for team management, outdoor activities, and situations requiring consistent communication over vast distances. This manual provides essential information for setting up, operating, and maintaining your AT-600 walkie talkie.
2. Producto terminadoview
The KAYOTOM AT-600 is a compact and durable two-way radio featuring advanced communication technology. It operates on 4G LTE networks, providing unlimited range wherever cellular service is available. Key features include a lifetime free SIM card, a long-lasting 3000mAh battery, AI noise cancellation for clear audio, and robust group management capabilities.

Figure 2.1: Two KAYOTOM AT-600 walkie talkies, showcasing their compact design and included SIM cards.

Figure 2.2: Visual representation of the global intercom functionality, highlighting unlimited range communication via high-speed network.

Figure 2.3: The aluminum alloy back panel and 3000mAh battery, designed for durability and efficient heat dissipation.
3. ¿Qué hay en la caja?
Your KAYOTOM AT-600 package includes the following items:
- 4G Radios (2 units)
- Lifetime SIM Card (pre-installed)
- Batería (preinstalada)
- Acollador
- Clip para cinturón
- USB Adapters with USB-C Power Cable
4. Guía de configuración
4.1. Carga inicial
Before first use, fully charge your AT-600 walkie talkie. Connect the provided USB-C power cable to the radio's USB-C port and plug the adapter into a power outlet. The device will indicate charging status on its screen. A full charge provides over 24 hours of continuous use, with 50% charge achieved in approximately 20 minutes.
4.2. SIM Card and Battery
The lifetime free SIM card and battery are pre-installed in your device. No manual installation is required for these components.
4.3. Encendido / apagado
To power on the device, rotate the top knob clockwise. To power off, rotate it counter-clockwise until the device shuts down.
4.4. Group Configuration
For multi-device and group management, contact KAYOTOM support via Amazon Message after your purchase. Provide your IMEI ID, and the support team will assist in linking your devices into custom groups as needed.
5. Instrucciones de funcionamiento
5.1. Función Pulsar para hablar (PTT)
The AT-600 utilizes a dedicated Push-to-Talk (PTT) button for instant communication. Press and hold the PTT button on the side of the device to transmit your voice. Release the button to listen.

Figure 5.1: The PTT button, designed for quick and convenient communication.
5.2. Control de volumen
The top rotary knob also controls the volume. Rotate clockwise to increase volume and counter-clockwise to decrease it.

Figure 5.2: The quick rotary switch for one-hand operation, controlling power and volume.
5.3. Menu Navigation and Group Selection
Use the navigation buttons below the screen to access the menu. From the menu, you can select groups for individual or group calls. The device supports up to 200 groups, each accommodating up to 500 people.

Figure 5.3: Free grouping options for individual and broadcast calls, supporting large teams.

Figure 5.4: The device's menu interface, allowing for group and member selection, settings, and device information access.
5.4. Cancelación de ruido con IA
The AT-600 features advanced AI noise cancellation, filtering out up to 95% of ambient background noise. This ensures broadcast-quality audio clarity even in challenging environments.
6. Mantenimiento
6.1. Cuidado de la batería
To maximize battery life, avoid fully discharging the battery frequently. Recharge the device using the provided USB-C cable and adapter. Store the device in a cool, dry place when not in use for extended periods.
6.2. Limpieza
Limpie el dispositivo con un paño suave y seco.amp Paño. No utilice productos químicos agresivos ni limpiadores abrasivos. Asegúrese de que la tapa del puerto USB-C esté bien cerrada para evitar la entrada de polvo y humedad.
7. Solución de problemas
7.1. No Signal / "Searching" Display
If the device displays "Searching" or has no signal, ensure you are in an area with 4G LTE cellular coverage. Move to an open area or a location with better signal reception. A strong initial signal is required for registration.
7.2. "Login Timeout" Error
If you encounter a "Login timeout" error, try powering the device off and then on again. Ensure stable network connectivity. If the issue persists, contact customer support.
7.3. Problemas de audio
Check the volume level using the rotary knob. Ensure the PTT button is fully pressed during transmission and released when listening. Verify that the AI noise cancellation feature is not inadvertently affecting your audio in specific conditions.
8. Especificaciones
Detailed technical specifications for the KAYOTOM AT-600 walkie talkie:

Figura 8.1: Posterior view of the AT-600, displaying the model number (AT-600) and FCC ID (2AN96PO25601).
| Característica | Especificación |
|---|---|
| Número de modelo | AT-600 |
| Marca | KAYOTOM |
| Conectividad | 4G LTE (Push-to-Talk over Cellular) |
| Rango de conversación | Unlimited (Nationwide 5000+ Miles) |
| Capacidad de la batería | 3000mAh (2 D batteries included) |
| Puerto de carga | USB-C |
| Cancelación de ruido | Advanced AI Noise Cancellation |
| Número de canales | 200 |
| Dimensiones del producto | 1.18 x 1.97 x 3.35 pulgadas |
| Peso del artículo | 13 onzas (0.37 kilogramos) |
| Volumentage | 3.7 voltios (CC) |
| Nivel de resistencia al agua | No resistente al agua |
| Identificación de la FCC | 2AN96PO25601 |
9. Garantía y soporte
The KAYOTOM AT-600 walkie talkie comes with a 1-year warranty. For technical assistance, group setup, or any product-related inquiries, please contact KAYOTOM customer support through Amazon Message. Our dedicated team is available to ensure a smooth experience with your device.