Question about tiptoi The pen

There is a headphone jack. This is also described in the package insert. However, the quality of the connection seems to be abysmal. After half an hour of listening, it stops working each time.

The new generation of the pen no longer has a headphone connection. The 4th generation pen has an integrated rechargeable battery and is charged via a micro USB cable or a separate charging station, which also loads audio files onto the pen via Wi-Fi. A headphone connection is not mentioned in the official information and is not visible in the pictures.