The daddario eclipse cello bass tuner is perfect for cellists and double bass players needing quick precise tuning. Its full colour vertical display ensures easy readability even in low light environments. The dual swivel action allows you to adjust the viewing angle to your preference making it convenient to use in various playing positions. This tuner is specifically designed to handle the low frequencies of cellos and double basses ensuring accurate tuning every time. With tuner calibration ranging from 430 to 450hz you can easily match your instrument to different pitch standards. Plus the auto power off feature helps to preserve battery life. Attach it to the lower strings side of the bridge for best results. Please note images are for reference only. Instruments not included with product.