Dressing up like an alien? Headed out for a night of dancing? Our Blue LED Star Head Boppers are perfect for nighttime events! Each pair of Blue LED Star Head Boppers comes with 3 LR-44 batteries which are included and installed. Blue LED Star Head Boppers are great for patriotic events and anytime red stars fit your party theme. Our Blue LED Star Head Boppers are sold by the piece. Please order in increments of 1 piece.