The i11 TWS wireless Bluetooth earphones come with a touch control feature with no physical buttons, so many functions can be achieved via different touch operations:
● Answer or end the phone call: Tap the touch panel on any side of the earphone once. 
● Play or pause the music: Tap the touch panel on any side of the earphone once.
● Turn down the volume: Double tap the left earphone
● Turn up the volume: Double tap the right earphone
● Play the next song: Tap the touch panel of the left earphone three times
● Play the previous song: Tap the touch panel of the right earphone three times
● Wake up the Siri: Long press the touch panel for 2 seconds 
● Turn on or turn off the earphones: Long press the touch panel for 5 seconds