Bluetooth Headphones Over Ear Cordless Stereo Wireless Headphone Music Volume Control Speakers Overhead Retractable Sport Workout Headset with Microphone Radio Built In for Iphone Laptop (Rose Gold);

Specifications

Bluetooth version:4.2
Output Power:RMS 3W*2
Speaker: 4Ω 3wφ40mm
Battery Capacity:350mAh
Input Power:DC5V 500mA
Max Consume Current:500mA
Frequency response:20-20KHz
Sensitivity:500mv500mV
Signal to noise ratio:>=90db
The distortion degree :<1%
Working time :Sustains 1.5-7h operation
Charging time :about 2hours
Functions:Bluetooth /NFC/FM radio /TF card /Audio in
How to use the FM mode ? Connect the headphones with your cellphone by the red cable ,long press the "M"button about 2seconds until you hear a voice "FM mode ",you can scan the station by short
press the previous button
NFC function
Cell phone pairs the bluetooth automatically when it closed to NFC,and move away then
close again to cut off the bluetooth
1.build in mic allows you to answer phone calls, play music to yourself or out loud. Solves
the problem of having to carry a separate music speaker when traveling &taking
exercises&at home
2.with Bluetooth and NFC technology to connect the device free from the constrained of
headset line easier to control music
3.support wireless or wire mode

Package List:
1 * Headphone 
1 * Audio Cable
1 * Charging Cable
1* User Manual

Note
The use of volume control and the upper and lower song switching in the User Manual is the
opposite, the correct use is as follows:
1.Long press the song/V button to contral Volume
2.press the song/V button once to switch songs