The Bose SoundTouch only supports the English language. Other languages are not supported. Here are commands for SoundTouch you can use it.
“Alexa, ask Bose to turn on”
“Alexa, ask Bose to turn off”
“Alexa, ask Bose to turn up the volume”
“Alexa, ask Bose to turn down the volume”
“Alexa, ask Bose to mute”
“Alexa, ask Bose to unmute”
“Alexa, ask Bose to play”
“Alexa, ask Bose to resume”
“Alexa, ask Bose to pause”
“Alexa, ask Bose to skip-forward”
“Alexa, ask Bose to skip-backward”
“Alexa, ask Bose to skip the song”
“Alexa, ask Bose to play a preset”
“Alexa, ask Bose what’s playing”
“Alexa, ask Bose to list my presets”
“Alexa, ask Bose to play all”
“Alexa, ask Bose to turn all off”
“Alexa, ask Bose for help”
“Alexa, ask Bose to play this song on all of my speakers”
“Alexa, ask Bose about {system name}”
“Alexa, ask Bose to play a preset {number}”. Example: “Alexa, ask Bose to play a preset 7”
“Alexa, ask Bose to set volume to {number}”. Example: “Alexa, ask Bose to set volume to 5”