V5.0 Bluetooth Earphones Sport Wireless Earbuds Handsfree Bluetooth Earphone Stereo Dual Headset For iPhone All Smartphone (Black)

3. They will automatically connect to your bluetooth device when you use again 

4. This wireless earbuds also can be single connection.

    ♦ True wireless stereo, left and right channel separation, HIFI sound.
    ♦ Both the left and right ears have a full Bluetooth headset function, which can beused alone or in pairs.
    ♦ Dual Mode Bluetooth 5.0, ultra low power consumption.
    ♦ Bluetooth transmission distance: 10 meters.
    ♦ Listening to the song time: about 5 hours for one ear and about 3 hours for both.
    ♦ Battery Capacity(Charging case): Internal 350mAh rechargeable battery.
    ♦ Standby time: About 120 hours.
    ♦ Support protocol:A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/DI1.3.
    ♦ Noise reduction technology:CVC6.0.
 
package include:  
1* Pair Of TWS XG-13 Wireless Earbuds (Left & Right)
1* Charging Case
1* Micro-USB Cable
1* User Manual
2* Ear Tips