The document describes the features and characteristics of a product, including its appearance design, functional features, technical specifications, etc.
This manual provides safety warnings, installation steps, and detailed operation instructions for the Wonder IS-188 wireless telephone. It includes information on power requirements, battery handling, and how to configure local and IP settings.
The guide also explains the device's features such as FSK/DTMF compatibility, multi‑unit support, three‑way communication, and display adjustments. Contact information for service and warranty is listed at the end. This manual is written in Chinese.
| Power Supply (Main Unit) | AC 110 V / DC 9 V 300 mA |
|---|---|
| Battery Charging Voltage | DC 9 V 300 mA |
| Supported Signaling Formats | FSK and DTMF |
| Maximum Number of Child Units | Up to 3 child units per master unit |
One master unit can connect up to three child units.
Immediately disconnect the power supply and stop using the device.
The battery is charged with a DC 9 V supply at 300 mA.
The manual advises using the device in dry, well‑ventilated places away from TVs, radios, and other appliances.