Has only been powered on.  Not game tested. 

The SEGA Game Gear Handheld System in black is a classic gaming device from the well-known brand SEGA. With its original components and NTSC-U/C region code, this handheld system offers a nostalgic gaming experience for fans of the Sega Game Gear platform. The system supports under 480p resolution and is perfect for on-the-go gaming with its compact and portable design. Whether you're a collector or a casual gamer, this working SEGA Game Gear handheld system with Sonic 2 is sure to provide hours of entertainment.