1. Long press SOS emergency call for help, you can set 9 emergency contacts 2. Fast dial: 6 groups can be set, long press 1 to call mother, long press 2 to call father, etc. 3. Blacklist 20 groups, which can prevent others from calling and harassing themselves 4. Voice changing function: male voice, female voice, children voice exchange, very fun 5. Multimedia: Wireless FM, voice recorder, video recording & playback, music player 6. Dual lights: Brighter, longer range 7. Oversized speakers, loud sound 8. Other functions: Alarm clock, calculator, calendar, e-book 9. Social software: Browser, facebook, Yahoo, Twitter 10. With lanyard hole: Can be lanyard, easy to carry, avoid falling or losing Notice: 1. The 2G network of AT&T in the United States seems to be closed and cannot be used 2. If the card is not read, it may be that the customer does not use a large card, and the small card cannot be read without aligning with the chip when the small card is inserted. 3. Can not go out of the country Japan, South Kor, Singapore, etc.