Key facts
- Brand
- BenQ
- Model
- EF91
- Category
- Cell Phones
- Documents
- 2
- Languages
- EN · ZH
- Last added
- 2012-06-01
Start here
BenQ EF91 Mobile Phone User Guide
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.
BenQ EF91 specifications
| 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 |
All BenQ EF91 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the SAR value for the head at 900 MHz?
The SAR for the head at 900 MHz (EGSM) is 0.31 W/kg.
What happens if the phone gets too hot while charging?
Charging will halt when the phone temperature exceeds 50 °C (122 °F).