MononColor is a handheld console released by M&D, a Chinese toy company, in 2014. The console has a headphone jack and uses 3 AAA batteries as a power source. Another variation of the console also released using a rechargeable battery. There are four known colors and the console distributed with or without a box and in a blister pack.
MononColor has some notable games like Roco Kingdom, Marvel and Dragon Ball. There are also special cartridges that are using cards and badges. Trading packs were released to include them also.