Specifications:

Bluetooth headset:
1) Bluetooth Chip: CRS 4.0.
2) Profile Support: HSP/HFP/A2DP/AVRCP
3) Bluetooth Distance: 10m.
4) Sensitivity: -92dBm.
5) Transmission Range(Hz): 2.40Ghz-2.48GHz.
6) Li-polymer Battery:37V; 24mAh.
7) Charging Time: 1-1.5 hour.
8) Music Time: about 1.5 hours.
9) Talking Time: about 1.5 hours.
10) Standby Time: 60 hours.
11) Size: 20mm*23mm.
12) Weight: 3.5g.

Car Charger
1) Cover Materials: ABS + Aluminum alloy
2) Output: 5V/2.1A
3) Input: DC12-28V
4) Size: 20*86 mm
5) Weight: 22.5g

Package list
1*Car Charger
1*Bluetooth 4.0 Headset
1*Manual

• "CAR BLUETOOTH HEADSET Dedicated for Safe Driving HEADSET & CAR CHARGER 2 in 1: Our award winning bluetooth headphone and car charger design offers you a quality experience in answering phone calls, listening to music and charging your cell phones and tablets. The Product adopts an absorptive design. The headset has an invisible charging port and can be charged all the way during driving. The charger bottom connects to the cigarette lighter."
• WIRELESS BLUETOOTH EARPLUG: Charge on the go, the integrated USB allows you to charge any of your devices while giving you the hands-free possibilies of bluetooth, right in your car. The comfortable and compact design allows our customers to travel hands-free making it as safe as possible while using their device in their vehicle. Bluetooth headset can often get lost when it is casually placed after use. Our product can be fixed since the charger bottom has a powerful magnet inside.
• "SINGLE PORT CAR CHAGER: SINGLE USB charger with a 2.1A port. The 2.1A port is compatible with iPhone 7/7 Plus/6s/6s Plus/6/6 Plus/SE/5s/5/4s/iPod/iPad/iPad Mini/iPad Pro/Macbook/Macbook Air/Macbook Pro/iMac/Mac Pro/Mac Mini/Samsung Galaxy S7/S6/S5/S4/S6 Edge/Edge+/Note 7/6/5/4/3/Edge/Android/Windows/tablets/laptops/computers. "
• "BLUETOOTH 4.1 VERSION: Built-in bluetooth V4.1,low power consumption,and up to 15m transmission distance(without obstable). WHAT YOU GET: 1 x Bluetooth Headset car charger kit, 1 x User Manual, and  complimentary USB charging cable ."

"CAR BLUETOOTH HEADSET Dedicated for Safe Driving HEADSET & CAR CHARGER 2 in 1: Our award winning bluetooth headphone and car charger design offers you a quality experience in answering phone calls, listening to music and charging your cell phones and tablets. The Product adopts an absorptive design. The headset has an invisible charging port and can be charged all the way during driving. The charger bottom connects to the cigarette lighter."ShenZhen Chirisen Technology Co., Ltd