This is the user manual for the BenQ-Siemens EF91 phone, which includes instructions on how to use the phone, safety precautions, and warranty information
This manual explains how to set up and use the BenQ EF91 mobile phone, covering SIM insertion, battery installation, charging, menu navigation, and call functions. It also includes a detailed table of contents that guides users through each feature of the device.
Safety information is emphasized, including RF exposure limits, SAR values, and special precautions for users with pacemakers, hearing aids, or other medical devices. The guide also outlines proper battery usage, temperature limits, and emergency handling procedures. This manual is written in Chinese.
| Rated voltage / frequency | 3.7 V, GSM 900/1800/1900 MHz; WCDMA 2100 MHz |
|---|---|
| Maximum transmit power | GSM 900: 2 W, DCS 1800: 1 W, PCS 1900: 1 W, WCDMA 2100: 0.25 W |
| SAR limit | 2.0 W/Kg |
| Measured SAR values | GSM 900: 0.31 W/Kg; DCS 1800: 0.135 W/Kg; WCDMA 2100: 0.233 W/Kg |