Supply car sun visor Bluetooth hands-free

Product Features 1. Using the world's most famous Broadcom's high-quality Bluetooth hands-free special master chip 2. Chinese, English, Spanish real voice 3. Three support connecting two mobile phone supports voice dialing function 4. 5. answer, hang up the phone, refused to answer the phone to redial the last number 6. 7. Built-in microphone, built-in speaker, 9. 8. You can adjust the volume using the DSP echo cancellation and noise cancellation technology full duplex processing technologies 10. 11 Wind noise suppression Bluetooth AFH 12. 13. technology can connect two phones, automatic connection 14. The low-power standby 15. Built-in rechargeable lithium-ion battery Three: Specification Bluetooth version:?? 2.1 + EDR ?? Frequency range: 2.4GHZ phones and handsfree connection distance:?? 0 ~ 10M effective distance call microphone:?? 0 ~ 1M charge voltage:?? DC12V-24V built-in lithium battery capacity:?? 600 mAH standby?? current: 0.3mA Standby time:?? more than 1,000 hours Dimensions 12.8 (L) * 5.9 (W) * 2 (H) CM Weight:???? 90g Operating Environment Temperature:?? -10 ~ 70 degrees?? Storage Temperature: -20 ~ 80 degrees