This combination of a powerful body massager plus optional vibrating bullet features 10 powerful functions of vibration, pulsation, and escalation. Use the body massager independently or plug in the vibrating bullet. Massager features a silky smooth Satin Finish and measures 5.25 in. by 1.75 in. Bullet measures 2.25 in. by 1 in. Requires 2 AA batteries.