v4.1 mini 8 in-ear bluetooth wireless earbuds support yes or no sound control 

1.mini bluetooth stereo earphone

2.Bluetooth version: Version 4.0+EDR/Class2

3.Operating Distance:10 Meters

4.Range of Frequency: 2.4GHz-2.4835GHz ISM Band

5.Operating Rang: Up to 10 Meters

6.Typical Talk Time: 7 hours( Hand free,call conversation,,support yes or no sound control )

7.Typical Standby Time: 120 hours (the iphone and mi mobile have the battery management show)

8.Rx sensitivity < -80 dBm (PER 1 %)

9.Rechargeable Li battery:80MAH

10.Compatible with various Bluetooth enabled devices such

as mobile phones, PDAs and Laptops

11.Accessories: usb cable, manual, two pcs earhook