What's in the box:

8BitDo Retro Receiver for MEGA Drive BT Sega Genesis and Sega Genesis (Black)

With the retro BT receiver, players can easily use 8BitDo controller and joystick, support for PS3, PS4, PS4 Pro,Wii Mote, Switch Joy-Con, Switch Pro, etc.

Features:
Support the system of SEGA Genesis & Mega Drive and Analogue Mega SG.
Compatible with 8BitDo controller and joystick (not support for 2.4G controller).
Can connect to PC via USB.
No lag.
Mini size, light weight and easy to carry.

Specifications:
Edition: US-Edition
Item Size: 53 * 24 * 11.6mm / 2.09 * 0.94 * 0.46in
Package Weight: 29g / 1.02ounces
Package Size: 92 * 55 * 26mm / 3.62 * 2.17 * 1.02in

Package List:
1 * BT Receiver
1 * USB Cable