1. Introduction
The EZGHAR Ultralink Pocket Mobile WiFi Hotspot (Model SAD66) is a portable device designed to provide internet access on the go. It supports 4G LTE connectivity and can create a Wi-Fi hotspot for multiple devices. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your device.
2. Product Overview
The Ultralink Pocket Mobile WiFi Hotspot is a compact and lightweight device, making it ideal for travel and mobile use. It features a small display for status information and a USB-C port for charging.

Figure 1: Front view of the EZGHAR Ultralink Pocket Mobile WiFi Hotspot.

Figure 2: Side view showing the charging port and other interfaces.
Key Features:
- 4G LTE Connectivity: Supports B1/B3/B5/B40 bands.
- 3G UMTS WCDMA: Supports B1/B3 bands.
- Peak Rate: Download up to 150Mbps, Upload up to 50Mbps.
- Wi-Fi Standard: 802.11 b/g/n.
- Device Sharing: Connects up to 10 users simultaneously.
- Battery: 3650mAh lithium battery, offering over 50 hours standby and 8 hours continuous work.
- Compact Design: Dimensions of 98mm x 59mm x 14.8mm, weighing 110g.
3. What's in the Box
Upon unpacking your EZGHAR Ultralink Pocket Mobile WiFi Hotspot, ensure all the following items are present:
- 1x WiFi Repeater (Ultralink Pocket Mobile WiFi Hotspot)
- 1x User Manual
- 1x Cable (USB-C charging cable)
- 1x Storage Box
Note: A SIM card is required for internet access and is not included in the package.
4. Setup Instructions
4.1. SIM Card and Battery Installation
- Open the back cover: Gently slide or pry open the back cover of the device.
- Insert the SIM card: Locate the SIM card slot. Insert your activated SIM card correctly, ensuring it is the correct size and orientation as indicated by the diagram inside the device.
- Insert the battery: Place the provided lithium battery into its compartment, aligning the contacts properly.
- Close the back cover: Securely reattach the back cover.

Figure 3: Step-by-step guide for inserting the SIM card and battery.
4.2. Powering On/Off
- To Power On: Press and hold the power button (usually located on the side or front) for a few seconds until the screen illuminates.
- To Power Off: Press and hold the power button again until the device powers down.
4.3. Connecting to the Wi-Fi Network
- Ensure your Ultralink Pocket is powered on and has a working SIM card.
- On your device (smartphone, laptop, tablet), search for available Wi-Fi networks.
- Locate the network name (SSID) displayed on the hotspot's screen.
- Enter the password (PWD) shown on the hotspot's screen when prompted.
- Once connected, your device will have internet access.
5. Operating Instructions
5.1. Checking Device Status
The device's screen displays important information:
- Signal Strength: Indicated by bars.
- Battery Level: Shows remaining battery life.
- Data Usage: Displays current data consumption.
- Connected Devices: Shows the number of devices connected to the hotspot.
- Network Type: (e.g., LTE, 4G).
5.2. Charging the Device
Use the provided USB-C cable to charge the device. Connect one end to the hotspot's USB-C port and the other end to a compatible USB power adapter or computer. The screen will indicate charging status.

Figure 4: The device connected to a charging cable.
5.3. Multi-Scenario Application
The Ultralink Pocket is suitable for various uses, including business, gaming, streaming, travel, and outdoor internet access. It supports WPA/WPA2 encryption for secure connections.

Figure 5: The device can be used in various settings like offices, homes, and outdoors.
6. Maintenance
- Keep the device dry and away from extreme temperatures.
- Clean the device with a soft, dry cloth. Avoid using harsh chemicals.
- Store the device in a cool, dry place when not in use.
- Avoid dropping or subjecting the device to strong impacts.
7. Troubleshooting
- No Signal/No Internet:
- Ensure the SIM card is correctly inserted and activated.
- Check if you have an active data plan.
- Restart the device.
- Move to an area with better network coverage.
- Cannot Connect to Wi-Fi:
- Verify the Wi-Fi SSID and password on the hotspot's screen.
- Ensure your connecting device's Wi-Fi is enabled.
- Restart both the hotspot and the connecting device.
- Slow Internet Speed:
- Check your data plan's speed limits.
- Reduce the number of connected devices.
- Move to an area with stronger signal.
8. Specifications
| Model Name | SAD66 |
| 4G LTE Bands | B1/B3/B5/B40 |
| 3G UMTS WCDMA Bands | B1/B3 |
| Peak Download Speed | 150Mbps |
| Peak Upload Speed | 50Mbps |
| Wi-Fi Standard | 802.11 b/g/n |
| Max Users | 10 |
| Battery Capacity | 3650mAh |
| Standby Time | Over 50 hours |
| Continuous Work Time | 8 hours |
| Dimensions | 98mm x 59mm x 14.8mm |
| Weight | 110g |
| Input Voltage | 100V~240V |
| Output Voltage | 5V DC±10% |
| Output Current | 1.0A |
9. Official Product Videos
EZGHAR Ultralink Pocket Overview
This video provides an overview of the EZGHAR Ultralink Pocket Mobile WiFi Hotspot, demonstrating its features and ease of use.
GLOBLINKER Portable WiFi Solution
This video showcases a portable WiFi device, highlighting its benefits for staying connected globally without SIM card hassles. While not the exact EZGHAR model, it illustrates general portable hotspot functionality.
Stay Connected Worldwide with GLOBLINKER
This video demonstrates how a portable WiFi device can help users stay connected worldwide, offering a personal hotspot experience. It provides a general understanding of the product category.
10. Warranty and Support
The EZGHAR Ultralink Pocket Mobile WiFi Hotspot comes with a standard manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or contact EZGHAR customer support. For technical assistance or further inquiries, please visit the official EZGHAR website or contact their customer service.