This manual introduces basic usage and precautions for BenQ Mobile EF91 mobile phone.
This guide begins with extensive safety information, including RF exposure limits and SAR values for various frequency bands (e.g., Head 900 MHz EGSM: 0.31 W/kg). It also outlines operating restrictions such as avoiding metallic accessories and maintaining safe distances from medical devices.
Further sections cover battery safety (charging halts above 50 °C), driving guidelines, vehicle and aircraft restrictions, and legal notices about licensing, export control, and technical support. The document ensures users understand how to operate the phone safely in everyday and special environments.
| SAR (Head 900 MHz EGSM) | 0.31 W/kg |
|---|---|
| SAR (Head 1800 MHz DCS) | 0.135 W/kg |
| SAR (Head 2.1 GHz WCDMA) | 0.233 W/kg |
| SAR (Head 1900 MHz PCS) | 0.259 W/kg |
| SAR (Body 1900 MHz PCS) | 0.833 W/kg |
| Maximum charging temperature | 50 °C |
| Minimum safe distance from pacemaker | 6 inches |
The SAR for the head at 900 MHz (EGSM) is 0.31 W/kg.
Charging will halt when the phone temperature exceeds 50 °C (122 °F).
Keep the phone at least six inches away from a pacemaker and avoid carrying it in a breast pocket.