Hikeen Premium Tennis Trainer Rebound with Metal Base,Portable Solo Tennis Trainer Set with 3 Highly Elastic String Balls,Tennis Practice Equipment for Adult Kids an Beginners - Black Spearmint Spree Quiet Operation: The noise level

Quiet Operation: The noise level is only about 60 decibels in Eco mode at 23 feet with 25% load

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Hikeen Premium Tennis Trainer Rebound with Metal Base,Portable Solo Tennis Trainer Set with 3 Highly Elastic String Balls,Tennis Practice Equipment for Adult Kids an Beginners - Black Spearmint Spree Quiet Operation: The noise levelBrand: Hikeen Color: Black Features: [DURABLE METAL BASE]: Hikeen tennis trainer rebound upgraded with a sturdy base, its own weight and rubberized grip on the bottom increase the friction with the ground, and stay stable on the ground during intense strokes. Ready to use right out of the box, no need to fill it with water or sand for every training session, no worries about leakage, thus keeping your hands clean and simplifying carrying and use