ACV 2GO Active BT1 Manuel page 9

Last Number Redialing
In STANDBY MODE, press MFB twice, the headset will automatically redial
phone last dial out the number.You will hear "Call back".
Forward/Backward
Shortly press "V+" or "V-" under music mode to forward the next
song or to backward the last song.
Music Playing/Pause
In playing music state, shortly press MFB once, the indicator light flashes
blue once each 6 seconds, it could remote playing and pause.
Forced to Disconnect Bluetooth
Connected with Bluetooth and pause the music, press "V+"twice will forcibly
disconnect, and you will hear "disconnected". When you press MFB again,
it will connect the last connected device, and you will hear "connected".
Headset Resetting
In any state, as long as the headset is charging, it will be reset.
Disconnecting
To disconnect the paired headset from your phone, please turn off the
headset or disconnect the headset from the Bluetooth menu of your phone.
When disconnecting, could hear "Disconnected".
Maintenance
 Do not use abrasive cleaning solvents to clean the headset.
 Do not allow the headset to touch with any sharp objects as this will
cause scratching and damage.
 Please keep headset away from high-temperature, humidity and dust.
CE certification and safety approval
We hereby declare that the device complies with the fundamental
requirements set out in the European Directive 2014/53/EU. The full EU
declaration of conformity can be obtained from the address given on the
title.