TWS Bluetooth headset :Feature1. Bluetooth V5.0, support most of Bluetooth devices and lower power consumption2. 2600mAh charging case can full charge 2 earphones around 8 times, offer more 30 hours music time3. With waterproof technology, no need to worry about water and sweat anymore4. 10mms dual drive units, enjoy 9D strong deep bass music sound 5. Popular touch control function, support switch songs, phone call and call voice assistant.Bluetooth Version: V5.0Nominal impedance:32Battery capacity: Headset: 40mAhCharging case: 2600mAhCharging input: 5v/700mACharging time:about 6-8 hoursWorking time:Talk time 6-8 hours Music time:6-8 hoursStandby time: 30 daysPackage 1:1x only one ear (without charging compartment)Package 2 :1x Bluetooth earphone1X Charging compartmentHow to connect it ?1. Long press the touching place where the fingerprint logo is until their light on red or blue.2. Turn on Bluetooth on your phone, then find the corresponding name to connect.3. They will have voice prompt CONNECTED after connected successfully.PS: Due to the characteristics of Bluetooth headsets, electromagnetic interference in the area may cause the connection to be interrupted.How to control volume ?1. Press once, they will pause or play.2. Press twice on the left to the previous song, press twice on the right to the next song.3. Press three time in a row on the left for volume down, press three time in a row on the right for volume up.4. Long press for 2 seconds for voice assistant.How to pick up a call / hang up?1. Press once to pick up the phone2. Long press to hang up the phone.