7-port USB 3.0 Hub with Power Switch & External Power Input Port + US Plug AC Power Adapter f PC Laptop EPA-481705 2 Feature: Active Noise-Cancelling USB

2 Feature: Active Noise-Cancelling USB Interface: 1 Color: Black Material: Plastic Operating range: 10m Wearing Type: In-ear Function: Magnetic

it can be easily powered by car charger

4 units in the package - Great for various landscapes and styles

truly free your hands when listening to music or answer phones

High Security Color: Various colors are available Capacity: 16000mAh Suit for: Smartphone

7-port USB 3.0 Hub with Power Switch & External Power Input Port + US Plug AC Power Adapter f PC Laptop EPA-481705 2 Feature: Active Noise-Cancelling USBProduct Features: USB 3. 0 USB 3. 0 's transfer rate can up to 640 MB sbackward compatible USB 2. 0 and USB 1. 1 Wide Extension of Compatibility Able to connect to most USB Devices (USB Flash Drive, Mouse and Keyboard). Charging & SYNC Function Support for smartphone charging and data transmission. Over current Protection Voltage and current overload protection will protect the hub and connected devices. Equipped AC Power Adapter With external power