Fangrui Product Details 1. Sp16 Car Speaker Bluetooth Headset Kit Privacy Call Visor Handsfree Phone Headset Wireless Car Audio 2. Omni-directional Microphone Design, The Call Is As Clear As Face-to-face 3. Sun Visor Hands-free + Bluetooth Headset Combo 4. Bluetooth Headset Can Answer Privately In Seconds To Protect Personal Privacy 5. The Bluetooth Headset Can Be Used Separately From The Host 6. Intelligent Vibration Induction To Turn On, Automatically Connect Back 7. 1200 Mah Battery, 1000 Hours Of Long-lasting Battery Life 8. The Continuous Talk Time Is About 20 Hours 9. Built-in Digital Power Amplifier, Greatly Enhance The Volume And Sound Effect 10. Advanced Multi-point Connection, Support Two Mobile Phones Online At The Same Time 11. Built-in Dsp Noise Suppression And Echo Cancellation Function 12. Bluetooth Transmission Distance: 10m