FUN FOR KIDS AND ADULTS: Flashdash offers 4 quick-fingered games in a unique light-up cube design. Great for home and travel, these fun handheld games help improve brain skills and hand-eye coordination. The two person competition mode can help increase feelings when playing with children. Volume is adjustable and can be muted entirely. Requires 3x AAA batteries (not included). TRAIN YOUR BRAIN & FINGERS :Changes in a variety of colors and sound effects can stimulate children's sensory development, establish color cognition earlier, and exercise their sensitivity to color. TRAIN YOUR BRAIN & FINGERS This handheld music variety magic cube is specially designed for training brain and fingers. Different fun handheld games help your kids to develop a focused personality.When you are bored, this flashing cube is a good toy to help you kill the time and relieve stress. WIDE APPLICATION:This flashing cube is suitable for all children over the age of three. It is a nice gift for many occasions, such as birthday, carnival, party and more, also suitable to be a reward, souvenir and more.It is also a good choice for giving children Christmas, Thanksgiving and New Year gifts. it is really an excellent gift for kids, friends,lover and family. Buy it now It is a nice gift for many occasions, such as birthday, carnival, party and more