Yamaha TW-E7B Noise-Canceling True Wireless In-Ear Headphones (White) - Manual (Page 50)

Phone calls
(
Receive a phone call
Function key
(
End a phone call
Function key (hold down during a call for at least one second)
(
Ignore a call
Function key (hold down when a call is coming in for at least one second)
Other functions
(
Start pairing
Hold down the function key and + (plus) key with the power turned on (hold both down for about three seconds and then
release)
(
Start voice assistant
− (minus) key (hold down for about one second)
(
End voice assistant (Siri only)
− (minus) key (hold down for about one second)
50
Appendix > List of operations