ITEM NAME:2016 New 2 in 1 Black In-ear Stereo Wireless Bluetooth Headset with Car Product Description Description: Item specifics Brand Name:OEM Input Voltage:DC 12V Output Voltage:Under 10 Volts Output Current:2.1A Bluetooth:CSRV4.0 Color:Black Features Brand New Design for Combination of Car Charger Bluetooth Headset Portable Multifunction Car Charger HD Stereo Bluetooth Headset Slideable Bluetooth Headset with Charging Slot Design New Bluetooth CSRV4.0 Technology Compatible with Various Mobile Digital Products How to use Bluetooth Connection Under the status of fully charged Bluetooth headset Long pressing the multifunction button for 3 seconds to power on and hold 3 seconds more to enter the Bluetooth pairing mode Activate your mobile phone Bluetooth and search ALD50 and connect To answer an incoming call Under the status of Bluetooth headset connected with mobile phone 1. Pressing the multifunction button 2. Fetching the Bluetooth headset out of car charger to wear on your ear To hang up an ongoing phone call 1. Pressing the multifunction button; 2. Putting back the Bluetooth headset in car charger Buttons Pressing the + - button for last/next track function, long press the + - button to adjust volume To enter Bluetooth headset charging status Bluetooth headset charging status will be Auto on when Bluetooth headset power below 3.7V Specifications: Bluetooth: CSRV4.0 Car Charger Input: 12-24V Output: 5V/2.1A Color: Black Size: 115mm x 38mm x 42mm Included: 1 x Wireless Bluetooth Headset.HD Stereo Bluetooth Headset. Slideable Bluetooth Headset with Charging Slot Design. Bluetooth headset charging status will be Auto on when Bluetooth headset power below 3.7V. To enter Bluetooth headset charging status.