Membership Promotions MPower Gym in Miami Shores is currently offering the membership promotion below. 2-Day Trial Pass 2-DAY FREETRIAL PASSRegister Now! First name Last name Email Phone I agree to receive text messages (required). What services interest you? (required) MPower Magic Group Classes Cardio Machines & Strength Training Personal Training SEND MY PASS *Trial pass is for local residents only (must provide valid local ID), first-time club visitors, must be 18 years or older, out of town visitors subject to guest/visitor fee.