No charger with this

With the supplied headphones, the music sounds creepy. Luckily I had ordered because of recessions a Panasonic RP-HJE120E1K In-Ear Headphones (3.5mm jack), so that the sound was good.
Have unfortunately noticed too late that there is no charger is included.
On vacation I needed then an extra charger plug, as I had no PC available to charge the player using the supplied USB cable.
The device showed me no more reactions to keystroke until I found out that it was the Tasetensperre.
Likewise, how the device after loading the Stom separates (charging plug from the socket, or disconnect the USB cable from the charging plug) is crucial for whether it is operated by the store or not.