Material: ABS Function: Sensory strength training Packing: color box Package size: 32.4*7.4*28.2cm Product weight: about 1000G Built-in battery 500 mah, charge 4 hours full, full can use about 2 hours 1. Experience rhythm: Transfer your favorite songs from your phone to a smart music immersive boxing machine. Connect to rhythms and melodies without disturbing your neighbors with stereo surround sound, shock-proof technology and mute features. 2. Adjustable speed: Experience a new level of training with our musical boxing machine! Adjust your speed (level 1-3) according to music or movement rhythm to bring more fun and challenges to your fitness process. 3. Lightning reaction: Witness a spectacular light show with a colorful light display of musical boxing machines. As you hit, the light changes patterns to suit the rhythm of the music and your agility - the faster and more intense your response, the faster the light will appear. 4. Maximum durability: Our music boxing machine is made of high-quality ABS material, strong and durable, strong and durable structure, can withstand 200kg of impact, with good impact resistance. Enjoy your workout with confidence without worrying about machine damage or distortion.