Vtech Swifter (1991, LCD, 4 AA Batteries, Model# 32-0939-03)
Tetris clone. Game has a way of controlling the contrast of the LCD and a headphone jack on the side of the game. Distributed by EG (Editrice Giochi) for Vtech in Italy. Thanks to Luca Antignano for the pic.
Do I have this? No.