1. Standard 3.0, the United States Broadcom Bluetooth program
<br />2. Effective distance of 10 meters
<br />3. Standby time: 100 days
<br />4. Continuous working hours: 70 hours
<br />5. Charging time: 4-5 hours
<br />6. Lithium battery capacity: 200mha
<br />7. Lithium battery life: 3 years
<br />8. Key life: 500 million times
<br />9. Plastic material
<br />10. Optional color: black gold silver rose gold