Massage Gun with Heat and Cold - This massager features 4 normal massage heads and 1 heating/cooling head with 4 adjustable temperature settings to target various muscle groups. Utilize the heat function to accelerate muscle recovery or the cold feature to ease muscle tension effectively. Smart Massager Gun with Training Courses - Connect to the RENPHO Health App via Bluetooth, you can control the speed levels through the app and access professional video courses that offer visual guides designed for specific muscle groups, enhancing warm-ups and aiding post-workout recovery. Powerful Percussion Massage Gun - Equipped with a high-torque brushless motor, which lasts longer and provides a deeper massage experience. And the deep tissue massage gun can deliver up to 45 lbs massage intensity to relieve your tight muscles. Fast Charging - Charge the muscle massage gun with the provided USB-C charging cable. Fully charge the massager before using it for the first time. Portable Massage Gun - The travel case provides a portable solution for storing the massage gun and its accessories, ensuring you can take it wherever. Whether you're using it at home, in the gym, or at the office, its silent and safe operation makes it suitable for any setting.