2 In 1 Universal Dual Ports Car Charger Bluetooth 4.0 Wireless Headset

Bluetooth V4.0, the transmission range is up to 10m.
Smart multi-point connecting, link two devices at the same time.
Noise reduction technology to isolate from background noise and provide high-quality music.
Built-in microphone, support answer / hang up calls and volume control.
Put the earphones in the car charger, answer calls when picking up earphones.
Function: Answering Phone,Bluetooth,Microphone,Noise Cancelling
Connectivity : Wireless
Working Voltage: DC 12V - 24V
Talk time: 4H