BTN - Ballantyne Strong Inc 2020 Q4 - Results - Earnings Call Presentation March, 11 2021 01:53 PM Ballantyne Strong Inc. The following slide deck was published by Ballantyne Strong, Inc in conjunction with their 2020 Q4 earnings call. For further details see: Ballantyne Strong, Inc 2020 Q4 - Results - Earnings Call Presentation