Dual USB Bluetooth V4.1 Business Car Charger Earphones Headphones

Description:
Advanced wireless connectivity to guarantee true performance and superior sound quality for music and calls. Unique in-ear design guarantees earphones closely fit to ears and will not fall off when answering calls. Using it, driving safer.

Main Features:
● Bluetooth V4.1 quickly pairing, the transmission range up to 10m.
● CVC noise reduction technology, effectively isolated from background. 
● Intelligent answer or hang off calls, answer calls directly after picking earphones up.
● Turn on / off earphones with engine flamed out.
● With a car charger, charging earphones at anytime, which can be used as a bracket to put earphones.
● 40mAh Li-ion battery, 3h talking time.
● Dual USB port, convenient and quickly.
● Only 5g, lightweight and comfortable to wear. 
● Connect two phones simultaneously.

Specification:
Bluetooth: V4.1
Transmission range: 10m
Battery: 40mAh Li-ion battery
Standby time: 90h
Talking time: 3h
Charging time: 1.5h
Driver: 10mm
Impedance: 16 ohm