Specification:Brand Name: ROMANModel Name: X3SBluetooth Scheme: ISSC1685Bluetooth Version: V3.0Mode: headset， hands-free， Advanced Multipoint.Talk Time: About 4 hoursEffective Distance: 10mOptional Color: Black， White.<br>Package Included:1 X Bluetooth Earphone1 X Charging Cable1 X Instruction1 X Earmuff<br>More Details: