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by Christopher Mehlenbacher, from NY, United States Asked on September 12, 2022
The ISOtunes Sport Caliber True Wireless Tactical Earbuds are not controlled by a cell phone app. If they are Bluetooth connected to a cell phone the controls for the volume on the phone will control the sound volume of either music or phone calls in the ISOtunes Sport Caliber True Wireless Tactical Earbuds.