Model Number: hip trainer 6 Modes Smart Easy Hip Trainer Buttocks Butt Lifting Lift Up Body Building Workout Fitness Equipment for Home Gym Function: Comprehensive Fitness Exercise Teaching Mode: Book Rated by Exerciser Number: 1 Controller Power Supply:: 2 x AAA Battery 1.5V (Not Included) Output:: Max. 9.8mA Working Time:: 12 Minutes(Per installation time) Frequency:: 1-100Hz Using Mode:: AF(6 mode) Intensity:: 10 classes Model Number:: Electric Vibration Muscle Stimulator