Headphones Connection Wireless Blue-tooth V4.2
Multiple Colors Options White, Black

Playing Time 3 hours
Single Earbud Battery 50mAh
Charging dock battery 280mAh, can charge earphones 10 times normally 
Usage
Mobile phone, laptop, tablet, MP3, PC, Car music players and other multi-media audio video players


Features
Dual-mode bluetooth 4.2,ultra-low power cosumption 
Bluetooth transmission distance :10 meters 
Listening time:monocular use about 3.5 hours ,ears use about 2.5 hours 
Talk time : 4 hours (call atate on the main headset work)


Headset charging:30~45 minutes 
Battery charging:1 hour~2 hours
Headset battery capacity:3.1~4.2V 50mAh 
Charging battery capacity:280mAh 
Charging parameters:5V 500mAh 
Support agreement:A2DP1.3/HFP1.6/AVRCP1.6
Weight 0.18 oz (one earbud)
Heatset Size 0.058 inch*0.086 inch*0.041 inch
Charging Box Size 0.16 inch*0.11 inch*0.11 inch

Double ears work: when listening to music, two earphones can simultaneously sound;When making a phone call, only the main earphone sounds.

What's in the box
2X Bluetooth Earbuds
1X Charger Box
1X User Manual
1X Charging Cable