Napoer Bluetooth 4.0 Car Receiver Wireless Phone Call & Music Streaming Car Kit with Built-in Mic with 2-Port USB Car Charger Car Charger: Dual USB ports charger can charge additional device simultaneously, this extra USB can quick charge your device with up to 3A high current.Car charger power supply, 5V/2.1A dual USB port allowing you to high speed charge your smart-phone or pad while enjoying music. Car Handsfree Made Easy: Route your phone through your car speakers. Make calls and listen to music via a Bluetooth 4.0 wireless connection. This bluetooth receiver is especially designed to car stereos with 3.5mm aux in port, makes you answer calls and enjoy music with ease.The echo and noise reduction technology makes clear call conversationmusic steaming wirelessly. Bluetooth specification: V4.0+EDRBluetooth Operating distance: 30 feetCar charger USB output: 5V/3A Total Voice Control: Siri function has been added to Bluetooth receiver, long press multi-function switch will activate and you can make phone calls and send massage by voice control.