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Amazon.com : Siboasi Tennis Ball Machine T1600 Black (Large-Capacity Battery, Intelligent Remote Control, Multi-Angle Multi-Function Serve, programmable) : Sports & Outdoors
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Amazon.com : Siboasi Tennis Ball Machine S2015 RED (Can remotely Adjust The Speed, Frequency, Angle, Rotation; no Battery Needs to be plugged in) : Sports & Outdoors
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